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Introduction
Economic activity (purchasing, production, distribution, sales, consumption, waste management) is largely carried out through monetary transactions, where the good or service sold and purchased is at a price accepted by both buyer and seller. In this section, we’ll look at how markets function, enabling these transactions and the setting of prices. We will also outline the properties and limits of markets, and the role of public authorities in their emergence and regulation.
The ability of markets to set prices, and the role these prices play in “doing business”, is a remarkable property. But there’s no such thing as an “invisible hand”, and it’s dangerous to attribute magical properties to the market. 1 Contrary to popular belief 2 markets do not spontaneously balance themselves. We’ll be taking a look at the flaws in this process, known as “market failures”. 3 We will then see that, in the face of today’s immense challenges, such as climate change :
- Public intervention to regulate markets is legitimate and necessary.
- Prices (possibly resulting from monetarization by public authorities) 4 ) cannot be the only signals 5 and the only constraints envisaged to modify behavior and bring about social change. The role of law, regulations, morality and a sense of responsibility towards fellow human beings and society cannot be forgotten.
- Work on companies and the commons shows that alternative or complementary institutional arrangements are needed at all levels.
This module benefited from proofreading and comments by Florence Al Talabani and Yannick Saleman.
The essentials
A few key concepts to understand the market(s)
A few definitions
In this module, we’ll look at the “market” from three different perspectives, which are worth keeping in mind. One is empirical, focusing on the organization and regulatory framework of markets as they occur in the real world. These organizations have one thing in common: they enable a seller or buyer to identify counterparties to the desired transaction, while at the same time having access to information on similar transaction conditions, in particular prices. The second perspective is that of the discipline of economics, for which the market is a privileged object of analysis and theorization, with significant divergences between schools of thought. The third is the “market” as a political principle, which has become dominant since the early 90s, ordering the economic system as opposed to centralized and/or directed economies. So let’s start with a few definitions.
Markets, in the empirical sense
Empirically, the term market can refer to :
- a place for physical exchange (like traditional markets where food and other products are bought and sold) or virtual exchange (like stock exchanges).
- all exchanges concerning a sector of the economy (real estate market, wheat market, etc.).
- all trade concerning a region (Chinese market).
We’ll see later that the functioning of these “empirical” markets is not spontaneous, but requires the intervention of public authorities (in terms of property law and competition law in particular), and we’ll see how economists have tried and are trying to understand this functioning.
Markets in the economic sense: liberal theory now dominant
This concept is based on an idealized vision of the market, and encourages its extension to all areas of life.
Since the early 1980s, political discourse and practice, underpinned by the theses of liberal economists such as Friedrich A. Hayek 6 have been pushing for the extension of the market sphere. The argument is as follows: the mechanism puts those directly concerned at the center of decision-making. Competition produces a price that reflects the relative scarcity of the good being exchanged, as well as the interest that people have in it, based on the information they have (or seek beforehand). This vision is based on the highly debatable postulate that economic players are “rational”.
The “producer” (farmer, industrialist, service company) is motivated to obtain the most accurate information possible on his customers’ needs, their willingness to pay, as well as on his own costs and their structure (fixed costs, variable costs), and his production methods. He can act to improve customer service, innovate, produce differently, etc. Consumers make their purchasing choices according to their desires, budget, etc. Hayek insisted that an administration cannot have the capacity to access all this information and process it correctly. From this he deduced a unilateral plea for the market as the most efficient institution.
However, neither the market, nor the authorities, nor anyone else can have all the right information at the right time. And, more to the point, information can be uneven between seller and buyer, which is one of the justifications for government intervention or other forms of coordination. We’ll come back to this in Essentials 3.1, on how markets work.
The market and competition principle as a political vision
The market is not just an empirical reality or, conversely, an object of academic study. It is also a political vision, and sometimes the object of quasi-religious belief. 7 With the birth of political economy came the idea – revolutionary at the time – of autonomy (Karl Polanyi 8 speaks of “disembedding”) of the economy and individual choices in relation to social and political relationships. From its very beginnings, “economic science” has had a normative, and therefore political, aim, and the case of the market is emblematic of this, as these few striking historical examples show.
From the 18th century onwards, economists played an active and effective role in major debates (Thomas Malthus in the debate on poor laws, David Ricardo in the debate on free trade) which had considerable political impact. The free trade pushed by David Ricardo for example, altered the balance of power between landowners and industrialists, and affected workers’ working conditions. The activism of neoclassical economists is permanent (even if its effects should not be overestimated). Using reasoning and mathematical models, they try to show that the optimum is indeed the market (correcting it, if necessary, for its failings). But such reasoning and models are hard to convince: they presuppose extremely strong simplifications of economic and social reality, on which their conclusions depend to a large extent.
This political character is manifested in the works of Karl Marx and his successors, and in the political takeover of economic levers, in the communist vision established in Russia from 1917 and in China under Mao.
The scale of the 1929 crisis (see Essential 5.2) was in part due to the aforementioned belief in the markets’ ability to restore equilibrium on their own. For months, despite the major economic crisis unfolding before their eyes, the authorities believed in “letting it happen, letting it pass“. 9
After the Second World War, the creation of the GATT and then the WTO, in parallel with the implementation of the common market and then the single market in Europe, made free trade (and therefore the generalization of the market) the economic ideal to aim for. This is obviously a political choice, and there are alternatives between generalized free trade and unilateral protectionism.
Since then, the main political parties in various countries (in Europe and in France, but everywhere in the world except in the Communist countries) have taken a stance on what should be market-driven and what should not. The dividing line is not technical but ideological, with some parties supporting maximum liberalization and privatization, while others favor planning and nationalization of certain businesses, including credit.
In France, the Commissariat Général au Plan, for the economy, and the DATAR, 10 for regional planning, had their heyday in the 80s. The turning point of 1983 led to their political marginalization. More generally, the 80s (the “Reagan and Thatcher years”), which followed the oil crises of the 70s, saw the intellectual and political domination of neo-liberal, highly pro-market ideas. Despite the financial crises, particularly those of 2008-2009, these ideas remain powerful.
A French organizational innovation is the creation of a General Secretariat for Ecological Planning in 2022. This organization makes perfect sense, as we show in this module: the market alone cannot take Nature into account. History will show whether this innovation will stand the test of time. But the debate surrounding this type of structure is a political one: the notion of “ecological planning” was launched by Jean-Luc Mélenchon and the Front de Gauche party in the 2010s, 11 and then taken up again by a President of the Republic claiming to be from the center-right 10 years later…
More recently, the “libertarians 12 in the United States, Donald Trump, and in Argentina, Javier Milei, want to abolish the state and public services, in defiance of their citizens and of what we demonstrate in this module: the market cannot do everything, and especially not everything for everyone. Libertarian policies can only benefit a caste that crushes the vast majority of citizens. These are not just devastating choices for social cohesion and Nature: behind these positions lies an ideology of “survival of the fittest” that is totally assumed , and total cynicism. Its zealots know full well that it is they who benefit, against all others… .
Trade structures the economy
Every day, billions of people, companies, associations and public administrations use a particular form of transaction – monetary exchange – which they decide autonomously. 13 These exchanges involve billions of products 14 of products, services, labor, natural resources, rights (e.g., intellectual property, infrastructure use) and financial assets. These exchanges distribute part of an economy’s total production between different uses, and redistribute claims and income, as well as the rights to exploit certain natural resources.
Taken together, these exchanges form the continuous flow of goods and services between producers and/or extractors of natural resources, and between the latter and consumers. They determine the primary distribution of income. 15
Markets are essential to organize trade
Markets enable these exchanges, regulate flows and contribute to the integration and coherence of different sectors of the economy. Without organized markets, transactions would depend on random encounters. Buyers and sellers would not be able to foresee and plan the transactions necessary for their activity, production, sale or consumption. They would have to discuss prices and negotiate constantly (which is done in some traditional markets, but not in “modern” economies, notably for legal reasons).
It’s worth noting that “markets”, like trade, originated well before the beginning of the first millennium BC, and elsewhere than in Europe. 16 The expansion of the market sphere accelerated with the Industrial Revolution and the division of labor, as well as during the successive phases of world trade expansion since the 19th century. It now seems impossible to do without such exchanges, initiated by both buyer and seller. Dictatorial or totalitarian regimes that have attempted to consolidate their power have failed. 17 On a political level, these attempts are aimed at suppressing a fundamental economic freedom: the ability not to depend on political power to feed oneself and satisfy one’s needs. What’s more, the products on offer were unsatisfactory in terms of both quantity and quality. 18 There were shortages, as well as untold wastage. On the other hand, the state is indispensable to the functioning of markets, if only to ensure that transactions are respected(see Essential 3).
As for the environment, it wasn’t taken into consideration either. 19 than in a capitalist system. But, conversely, favoring market transactions is no guarantee of a democratic political regime or shared prosperity. 20
The State decides what is marketable
In reality, in no country are all transactions monetary, nor do they all take place on established “markets” or “exchanges”. Non-market transactions may be based on interpersonal giving 21 redistribution, barter, public service or quantitative rationing by a central authority. 22 The decision as to what is subject to market exchange and what is not is largely a political one. Political power can prohibit or regulate the commodification of certain transactions for ethical and/or individual protection reasons (organ and/or blood donation, prostitution, surrogate motherhood, drugs, weapons). 23 Conversely, governments can decide to guarantee access to certain public services (health, education or housing) without monetary compensation (or only partial compensation) and on the basis of non-monetary and social criteria. It can also impose by law insurance schemes, such as the public pension scheme, totally or partially ousting the commercial sphere from this sector. For economic and financial reasons, public authorities can also decide whether or not to transfer the construction and use of certain infrastructures (roads vs. toll freeways) to the commercial sphere. Finally, the way in which natural resources, including land, are exploited is a major issue for every society. It can be a commodity with varying degrees of regulation, or it can retain the status of a common good and be managed by agreement between stakeholders on their respective rights and obligations.
Non-market activities are also substantial
In addition, non-market activities (without monetary remuneration) are numerous and important both socially and economically: domestic work (cooking, DIY, education), voluntary activities (charities, sports, leisure, etc.), tasks carried out without any real remuneration (out of a sense of service, duty, dignity, etc.). They represent a significant proportion of a country’s activity. According to an old but revealing OECD study, unpaid work is equivalent to a third of GDP. 24 in OECD member countries. A more recent study, limited to “care-work 25 shows that it represents 9% of global GDP. 26
The division between the market and non-market spheres varies over time and from country to country, depending on cultural and ideological developments, technologies and economic opportunities, and the outcome of social and political conflicts. 27 Companies also contribute to this variability. They may decide to produce certain goods in-house (see Essential 4.3) to save on transaction costs. 28 or, on the contrary, to outsource production in order to compete with external service providers.
Market mechanisms bring information and innovation and facilitate the matching of supply and demand
A market helps “supplier” companies (through knowledge of sales histories) to understand the “willingness to pay” of their customers and prospects, for which products and services, and to anticipate innovations. For consumers (citizens or companies), the market enables them to find out what offers will enable them to satisfy their needs or desires. In short, the market brings supply and demand closer together (if not on an equal footing).
Price is obviously a decisive piece of information for both buyer and seller: it’s information they necessarily know, unlike other information that may be deliberately hidden or simply not disclosed. They therefore necessarily pay special attention to it. From the point of view of economic theory, it is legitimate to give specific consideration to the role of this information in economic decision-making. However, an informed decision presupposes knowledge of the properties of the product purchased, including durability and potential impact on health and the environment. In addition, there are growing expectations regarding the traceability of product origins (which can increasingly be met by various digital processes). Legal provisions are needed to encourage companies to provide this information, and to enable legal action to be taken in the event of misinformation.
The stimulus of competition has a positive effect for the consumer – and more generally the purchaser – who can compare products and their value for money. They are not dependent on a single supplier or service provider. It’s also a source of innovation.
How (and who can) regulate market prices?
The decentralized information on millions of economic agents processed by markets cannot be known by an administrative authority whose capacity to set a price is limited. But competition is not a system that imposes itself and stabilizes spontaneously without the intervention of a regulator. In some cases, public authorities intervene directly to correct the undesirable effects of free pricing and competition, as in France for the price of all books, or in many countries for certain rents. And as may happen in the event of a crisis in basic necessities such as energy 29 or food.
Consumer power (the consom’acteur concept) is a decentralized power that is an important condition of “freedom of choice”. In principle, it enables the consumer to choose, within the limits of his or her means and relative prices, what seems most useful to him or her. By buying, the consumer can influence economic life. However, this power has its limits, and it would be naive to believe that it is sufficient to “govern” economic life. Companies influence consumer choices through advertising campaigns which can draw on advanced research in behavioral psychology and vast amounts of statistical data. 30 They have access to information that consumers do not have – and which has been multiplied considerably in the case of companies in the digital sector. They have access to political powers through trade associations and, for the larger ones, directly. This enables them to exert pressure on standards, regulations and taxation, all of which ultimately impact on consumer choice. Citizen checks and balances are therefore essential.
Entrepreneurial freedom is an essential political freedom
To be able to work for a decent wage, or to undertake freely (subject to compliance with social and environmental rules) and thus be able to “earn a living”, is a fundamental freedom. Depriving people of this freedom leads to economic dependence, which is politically dangerous if it becomes widespread. Conversely, ensuring that everyone can develop useful skills and live decently is a duty of justice for any society, and a guarantee of its lasting cohesion. Entrepreneurial freedom should therefore not be confused with the obligation to do so in order to live, or even survive. Collective bargaining and labor law are necessary to compensate for the de facto inequality between employees and the company, and not to leave the conditions of the employment contract to individual negotiation alone. Adam Smith himself was no fool of this asymmetry. In The Wealth of Nations, the founding book of the “invisible hand” myth 31 he wrote: “It is not difficult to foresee which of the two parties (masters or workers), in all ordinary circumstances, should have the advantage in the debate, and necessarily impose all its conditions on the other. The masters, being fewer in number, are able to consult each other more easily; and what’s more, the law authorizes them to consult each other, or at least does not forbid them to do so, whereas it forbids the workers. We have no acts of Parliament against leagues that tend to lower the price of labor; but we do have many that tend to raise it… It is said that we hardly hear of coalitions between masters, and every day there is talk of that of the workers. But you’d have to know neither the world nor the subject in question to imagine that masters rarely form coalitions among themselves. Masters are at all times and everywhere in a kind of tacit, but constant and uniform league, not to raise wages above the current rate. To violate this rule is everywhere an action of a false brother and a subject of reproach for a master among his neighbors and kindred spirits.”32
We’ll see inEssentiel 8 how the construction of the European market has been, and still is, highly regulated, with a very high level of intervention by European and national administrations working in close liaison with trade associations.
Find out more
- Adam Smith, The Wealth of Nations, 1776
- Friedrich Hayek The Road to Serfdom (6th edition), PUF Quadrige, 2013
- Karl Polanyi The Great Transformation. Aux origines politiques et économiques de notre temps, Gallimard 1983
- Des marchés et des dieux, Stéphane Foucart, Grasset, 2018.
- Read Marion Cohen’s review of Stéphane Foucart’s book on the Chroniques de l’Anthropocène blog (Alain Grandjean’s blog) (18/10/2018)
- The reference book by Marcel Mauss, Essai sur le don, Flammarion, reprinted in 2021, originally published in 1925.
- Michael Sandel, What Money Can’t Buy, Seuil, 2014
Market equilibrium: an enduring myth despite the facts
The famous “law of supply and demand”: the reduction of markets to the quantity/price pairing
In this chapter, we focus on a particular vision of markets, the so-called “neoclassical” vision (see box), which emphasizes price and the role it plays in linking “supply” and “demand”. We’ll look at other approaches inEssentiel 5. But this dominant vision, taught in all economics courses, deserves a special focus. The basic idea is that, on a given market, the price of a product is formed by the confrontation of supply and demand. Quantities offered increase with price, those demanded decrease, and there are equilibrium prices equalizing supply and demand on all markets. At these prices, all sellers and buyers are satisfied, because they find a counterparty that suits them.
What is neoclassical economics? Synthetic presentation
The term “neoclassical theory” (or neoclassical school) was coined a posteriori to designate a current of economic thought born of the work carried out independently but almost simultaneously by William Stanley Jevons (1835-1882), Alfred Marshall (1842-1924), Carl Menger (1840-1921) and Léon Walras (1834-1910) in the early 1870s.
This current is largely dominant in contemporary thinking, and is based on several key concepts.
- The rationality of economic agents The rationality of economic agents: individuals are considered as “rational” actors who seek to maximize their satisfaction (called utility by economists), which is equated with consumption for individuals and profit for companies.
- The central role of markets as an institution for coordinating individual behavior towards an optimal situation: the economy is seen as a set of interconnected markets, which, thanks to price, naturally tend towards an equilibrium where supply equals demand.
- The role of prices: prices play a central role as signals for the efficient allocation of resources in the economy.
- Methodological individualism: analysis starts from individual behavior to explain global economic phenomena. It does not consider institutions as actors in their own right.
Finally, let’s mention the fact that the neoclassical school has been based on mathematics from the outset (utility is a function of a function of a function of a function of a function of a function of a function of a function of a function). utility is a function individual preferences are mathematical sets, an individual’s preferences are generally represented by a mathematical set called an indifference curve or surface, often convex, etc.). On this subject, see our mathematics in economics .
For Friedrich A. Hayek, what needs to be taught is that “prices generated by the just conduct of market participants – that is, competitive prices, free from fraud, monopoly or violence – were all that justice required”. 33
In this vision, producers would produce at the right price the right quantity of products, which would be bought at that price by consumers. There would be no unsold products or shortages. Markets would therefore balance spontaneously, in the sense that the decentralized confrontation of supply and demand would automatically lead to an equilibrium price. The vision of market equilibrium can be interpreted in two different and complementary ways from the perspective of neoclassical economists.
The first meaning is an empirical hypothesis. There is a mechanism that establishes the “equilibrium price” on markets. The second meaning is normative: when all transactions take place at the equilibrium price, transactions are Pareto optimal: it is impossible to improve the satisfaction of one agent without worsening that of another.
The neoclassical theory of price formation
Let’s start with transactions on one or a limited number of highly interconnected markets. 34 This is known as partial equilibrium. The price formation mechanism depends on the structure of the market or markets. For example, if the seller holds a monopoly and is faced with a crowd of buyers, he will be the sole master of the price, which he will set at the level that maximizes his profit (possibly by trial and error). If there are only a few sellers (oligopolies), the price will be set either by agreement (generally prohibited by competition law), or by mutual observation and successive adjustments (Cournot equilibrium). 35 ).
Neoclassical economists developed the ideal model of a perfectly competitive market by associating the following attributes with it:
- atomicity (no single seller or buyer has a market share that allows it to influence price);
- the market is defined by a homogeneous product whose qualities are as well known to buyers as to sellers;
- there are no restrictions on market entry or exit, which maintains competitive pressure;
- rational” actors (homo economicus) logically use available information to maximize their profits and utility function.
In the absence of dominant players, we need to add an equilibrium price formation mechanism at which “all” transactions are executed. Ideally, this mechanism presupposes “perfect, continuous and cost-free communication between all participants. Each potential buyer knows and chooses between the offers of all potential sellers”. 36 This crucial assumption, however, is not tenable in general: the formation of prices and the execution of all transactions must be organized. The economist Léon Walras who first mathematically represented the competitive “market”, was well aware of the difficulty, and introduced a “deus ex machina” for this purpose: the auctioneer who, by trial and error, identifies the price at which each seller finds a buyer, and vice versa.
The market would produce “optimal” prices: a certain vision of the social optimum
What about the normative evaluation of this partial equilibrium? The equilibrium price corresponds to a Pareto optimal situation in the following sense: at this price, all exchange gains are realizable and no further mutually advantageous exchanges are possible. By construction, this is not true at any other price level. If Walras’ auctioneer makes a mistake and announces a price higher (or lower) than the equilibrium price, sellers (or buyers) will not find a counterparty and some would be ready to lower (or raise) their price in order to carry out an exchange that would remain mutually advantageous without damage to the other participants.
Following Léon Walras, neo-classical economists also explored two questions: the possibility and uniqueness of a generalized equilibrium, i.e. one in which all markets are in competitive equilibrium as described above; and that of the “social” optimality of such an equilibrium. While continuing to leave aside the question of actual price formation, in 1954 Arrow and Debreu, along with McKenzie, identified the conditions necessary for such an equilibrium, in addition to those defining a competitive market. 37
One of these conditions is non-creasing returns to scale in production. 38 Competitive” prices agreed between “rational” consumers/producers with the same level of information reflect the relative productivity of inputs and the relative “utility” of outputs. The allocation of resources corresponding to the equilibrium is optimal according to Pareto: substituting the production and therefore consumption of one good for that of another would necessarily be to the detriment of the utility of at least one other consumer/producer. This is a definition of optimal resource use that is indifferent to the distribution of income prevailing at equilibrium, and is based on an individualistic conception of satisfaction. 39 We shall see later that many of the assumptions crucial to the achievement of a general equilibrium are not fulfilled in reality.
How markets work in reality: institutionalized mechanisms
Let’s return to the hypothesis of how markets work. It seems that “acts of exchange at the personal level create prices only if they take place in a system of price-creating markets, an institutional structure that is in no way generated by simple chance acts of exchange”. 40 Concrete markets, i.e. the organizations that regulate market transactions and enable their expansion, have in fact always been the product of political decisions that make them possible (local weekly markets, freedom to establish a business, to provide a service), that frame them (sanitary conditions, professional qualifications, various legal provisions…) and set norms and standards(see Essential 3). In some cases 41 public authorities delegate a legally-defined regulatory function to an agency. These decisions are often the result of a “partnership” or private/public cooperation, and may depend on highly specialized technologies (globalized financial markets, digital platforms, etc.).
Historians show that as early as the 13th century, the creation and regulation of weekly markets in France was a royal prerogative. 42 These markets brought producers and consumers together at fixed dates and places. The authorities provided additional services by securing the place against thieves and ensuring the accuracy of weights and measures. And, of course, they provided a source of tax revenue. In 1220, in a German-language work, we read: “A market can never be properly organized, if the naive can be deceived”. 43 The role that a regulating power must play in price formation had been recognized at least as far back as ancient Greece. Plato asks:
But within the city itself, how will citizens share the fruits of their labor with one another? For it is for this purpose that we have joined together and formed a state. Clearly, it will be by buying and selling. Hence the need for a market and a currency, a sign of the value of the objects exchanged.
Digital platforms and social networks create marketplaces
In part, networked digital platforms for the general public 44 such as Uber, Airbnb, Booking or Amazon, which have emerged over the past 20 years on the initiative of private entrepreneurs, follow the same logic as the royal or seigniorial powers that organized public markets. They exploit their own capacity for networking and communication to expand and even create new markets. Where necessary, they provide complementary services, such as securing transactions or delivering goods. As a result, they gain regulatory power on both sides – supply and demand – which they naturally use to maximize their private profits and oppose the emergence of organizations that would undermine their position of domination. The expansion of the markets they create can, however, have politically or socially damaging consequences on other markets (cab, real estate market, books and booksellers, labor relations), which may require a response from public authorities and new regulations. 45
In reality, market regulation – and hence the way markets operate and the prices they command – is never static. They may need to evolve in response to the emergence of new “business models”, changes in political orientation or new public policy objectives, such as the energy transition. This is why an essential question that always arises is “who makes the rules, for whom, with what objectives”. 46
Many price formation mechanisms co-exist in our society
The price-formation mechanisms themselves take a variety of forms, most rarely that of the auctioneer as assumed by Léon Walras. These mechanisms are the fruit of negotiations between the participants, who are generally unequal. This can legitimize public intervention to validate arrangements or correct biases in these mechanisms. The multiplicity of the latter reflects the heterogeneity of participants and products.
In addition to the online marketplaces already mentioned, here is a list of others:
- Exchanges, which have become electronic, where buy and sell orders – sometimes generated by computer software – are executed instantaneously for standardized, dematerialized products (shares, bonds, promises to deliver raw materials, etc.); the wholesale electricity market and the ETS market forCO2 quotas. 47 market are also special examples.
- As a general rule, they set a non-negotiable price, leaving it up to the buyer to compare prices and the merchant to adjust the price according to sales. But there are also markets where negotiation is the order of the day.
- Small retailers themselves may be reduced to accepting prices imposed by wholesalers or producers, or conversely, like supermarket chains, may be able to negotiate their purchase prices.
- Auctions for fairly homogeneous products that “need” to be sold quickly (fish, crops).
- Auctions for works of art, real estate or stock liquidations, which are “unique” even if in competition with other similar goods.
- Bilateral contract negotiations.
- Collective bargaining (wages, prices of agricultural products between farmers, manufacturers and supermarkets).
- Invitations to tender.
In addition, public authorities intervene. On the one hand, by prohibiting sales at a loss, and on the other, by prohibiting cartels and establishing the rules of competition. Public authorities sometimes intervene directly in price formation. This may involve :
- Administrative decisions to set or limit prices; this is still the case in France for electricity tariffs, certain food products (EGALIM law) and some housing rents subject to the 1948 law. 48 … but there were many after the war, which saw a period of rationing. Similarly, following Russia’s invasion of the Ukraine, several countries introduced measures to moderate price rises for essential goods (energy, food), which had become unaffordable for part of the population and/or businesses.
- Prohibitions on certain transactions, such as the purchase of Russian gas in the wake of the war in Ukraine.
- Setting a minimum wage.
- Economic intervention by public authorities in a decentralized process (e.g.: book prices in France are governed by the Lang law, and no bookseller can offer a discount of more than 5% on a new book compared with the advertised price; this system has saved small bookshops from competition from the big chains).
- Since the post-war period, agriculture has been steered by interventions on prices and/or production quantities.
General equilibrium: from theory to the dominant normative ideal
However, by reducing market analysis to the price/quantity relationship and “disembedding” it from the institutional context, neoclassical economists pulled off an ideological masterstroke. This analysis links two meanings of the word “economy”: the optimal use of means to achieve an end, and the empirical social organization of production, exchange and consumption.
Recourse to the theory of competitive markets enables us to develop an overall vision of how the economy works, reflected in the existence of a general equilibrium that also satisfies certain optimality criteria. However, as we shall see inMisconception no. 2, the self-regulation of markets and the very existence of a general equilibrium depend on a number of crucial assumptions, the removal of which fundamentally calls into question the conclusions reached.
The market has nonetheless acquired a founding role 49 in explanations of how economies work, and its expansion became a “naturally” imposed, supposedly neutral objective, before becoming a political program. The market is then presented, from a normative point of view, as an ideal for the functioning of the economy ( as we saw in 2.1.1 ) rather than a tool for analysis and explanation.
The ideological and political philosophical basis of a “market economy” is the representation – very seductive at first sight – of a system that combines maximum individual freedom with efficiency (in the Pareto sense). For Milton Friedman, one of the most fervent apostles of neoliberalism, the market is THE democratic mechanism par excellence: “The political principle underlying the market mechanism is unanimity. In an ideal free market based on private property, no individual can force another, all cooperation is voluntary, and all who cooperate either benefit or do not need to cooperate”. 50
This approach leaves aside all political, social and ethical issues, and treats the question of income inequality independently of the economic process. If the market produces an undesirable distribution of income, redistribution through direct taxation and transfers can intervene, but care must be taken not to interfere with the price and wage mechanism. It is certainly recognized that the market needs a third institution to function: the state. But the state’s role is limited to securing ownership and the performance of contracts, and correcting market failures. 51 a point to which we’ll return later. For these economists, the state does not create the market: it must guarantee the minimum conditions for its operation and, where necessary, make the corrections required to bring the reality of transactions closer to the competitive ideal.
Bear and Bull, the two main market imbalances
In practice, a market is never in equilibrium, in the sense that all the desired supply would find a buyer, and vice versa.
A“seller’s” market is dominated by sellers: all products on offer find buyers, so it’s the sellers who are in a strong position. For a given price, demand exceeds supply: demand is therefore rationed, and sellers can raise prices, since demand will follow. Excess demand will diminish (until it is eliminated at equilibrium, if it occurs).
A “buyer’s” market is the opposite; it’s dominated by buyers because supply exceeds demand. Supply is therefore rationed by demand, and sellers have to lower their prices to try to (partially) sell it.
In the first case (“seller’s” market), prices are on an upward trend. At the extreme, we observe an “overheating” or even a bubble. In the second case (“buyer’s” market), prices are on a downward trend; in the extreme, we see a depression or even a recession or major economic crisis, as in 1929 or 2008.
Let’s take two examples. In the real estate sector, a buyer’s market situation can be identified by the fact that there are many properties for sale that are not finding buyers. Prices are on a downward trend. In concrete terms, an owner who wants to sell quickly has to wait or lower his asking price. In the seller’s market, the opposite is true: the buyer has to hurry to buy, there are few “products” available and prices are rising. The seller can wait, hoping to increase his selling price.
In the financial sector, the stock market is the ideal place to observe this type of imbalance. When prices rise because there is more buying than selling – a “seller’s market” situation – the stock market is “euphoric. A bubble can form. Conversely, when markets are anxious, buyers dominate, as sellers are unable to sell everything they want to sell. Prices fall and eventually crash.
These are known as bear and bull markets. A bear market is dominated by bearish behavior. A bull market is bullish.
General equilibrium theory: an illusion far removed from the facts
However, market theory did not stop with the abstract identification of a “competitive general equilibrium”. Later contributions lifted some of the assumptions made in the initial mathematical theory, and studied the consequences. In Essentiel 3, we will return to the subject of market regulation, some market “failures” and possible solutions. Let’s limit ourselves here to describing four phenomena that call into question the existence of a general equilibrium in structurally stable markets.
Effective and notional supply and demand
The first is based on the distinction between “effective” demand (or supply) and “notional” demand. In the absence of the Walrasian auctioneer, a “seller” may not find a buyer. His notional offer (that which he was prepared to satisfy if an equivalent demand was expressed) does not materialize, and he is left with a stock of unsold goods which forces his effective demand to fall short of his notional demand, i.e. that corresponding to a situation in which he would have carried out the planned sale. A typical example is a situation where the unemployed spend less than they would if they were in work, which discourages companies from producing more.
We’ll come back to this major point in more detail inEssential 5. The idea of the possibility of a general equilibrium resulting solely from the interplay of supply and demand is based on Say’s law, known as the law of outlets. According to this law, also known as the law of outlets, supply creates its own demand, since production generates purchasing power equivalent to that production, which will therefore find a buyer. It’s true that the cost of production for a company is equal to the income (from employees, suppliers, subcontractors, bankers, etc.) it distributes. But for the company to finance these expenses, it must sell all its production. So it’s sales that generate purchasing power, not production itself. J.B. Say’s reasoning is circular and implicitly based on the conclusion he wants to draw. The crisis of 1929 demonstrated this error in a spectacular and, unfortunately, violent way for its victims.
Speculative phenomena
The second is based on a price formation mechanism that sustains speculative bubbles (see box). This is the case when market participants act not according to economic rationality, but on the basis of what they think will be the behavior of other participants. This type of phenomenon is most common in financial asset markets. Financial regulation is needed to control the negative consequences (seeMisconception #4: Financial markets are efficient). But other assets such as real estate, or even tulip bulbs as in 1636-1637 52 can also be the object of speculative movements.
What is a speculative bubble?
A speculative bubble is a situation in which the price of an asset, such as shares, real estate or commodities, rises excessively. At some point, the players, usually suddenly and as sheepishly as they were buyers, start selling the assets in question, causing the bubble to burst: prices fall rapidly. This is the famous case of the tulip crisis. In 1635, 100,000 florins 53 to buy a batch of 40 bulbs. A week after the bubble burst, in 1637, tulips were worth less than one hundredth of their previous value.
This was also the case with the dot-com bubble of the late 1990s, when tech stocks saw their prices rise exaggeratedly before bursting in 2000. And, of course, there was the sub-prime bubble. 54 of the 2000s, which led to the global financial crisis of 2007-2008.
What’s special about a speculative bubble is that it only becomes clearly identifiable as such once it has burst. On the one hand, the bursting of a bubble is unpredictable, and on the other, situations of strong asset price rises do not always lead to one.
A bubble is often considered to occur when a large number of investors buy assets in the hope that their prices will continue to rise, regardless of the underlying economic factors that would justify such an increase. But this explanation is based on the idea that there is a fundamental value for a given asset (usually calculated as the discounted sum of future annual returns). This idea is hard to sustain: how can we believe that the value of Tesla shares is justified by the company’s economic prospects? Its market capitalization in February 2025 is $1,000 billion, a “multiple” of 160 times its earnings. Even the “multiples” of the most highly-valued tech giants (Apple, Microsoft, Nvidia, Google, Meta) are much lower, between 20 and 50 (although still very high).
Asset prices are therefore the result of more or less rational buying and selling behavior, which takes more or less account of the economic performance of the underlying companies or assets. They are also subject to political or other systemic effects. Speculative bubbles are therefore as difficult to detect as they are to avoid.
Natural monopolies
So-called “natural” monopolies include networks (rail, road, electricity, water, etc.). For the network operator, the marginal monetary cost of an additional user is zero or very low (a little more maintenance). But fixed costs justify setting a price well above marginal cost. As the operator is in a monopoly situation, this price must be regulated when the network is not public.
For the example of electricity, see our fact sheet on opening up the electricity sector to competition.
The example of increasing returns: the gap between theory and reality
The original hypothesis of non-creasing returns to scale
The notion of diminishing returns is intuitively understandable: there would be a point beyond which increasing the number of hours of labor (one of another production factor), with a constant number of machines, does not proportionally increase output. The cost of the last unit produced is higher than that of the previous units. Or, to put it another way, the profitability of this last unit is lower than that of the previous ones. David Ricardo made diminishing returns an economic law by observing the case of agriculture. At the time, farmland was cultivated in descending order of yield: “good” land first, bad land last. Today, this is the case for mining deposits for energy or mineral resources, but as we shall see, it’s far from being a general rule.
This central assumption of increasing costs of the last unit produced (and therefore decreasing returns) is essential in establishing the theory of general equilibrium. Firms are thus limited in their production: there comes a time when it is not in their interest to produce more. If demand for a product increases, they can raise the price – up to a certain limit – which sets the price. Conversely, if demand falls, they can cut production without loss (since they are reducing marginally less profitable production).
Conversely, if – and as long as – the cost of the last unit produced remains equal to or lower than the previous one, it is in the company’s interest to increase sales and production. This means that the biggest companies, or those with the financial strength to grow faster, can wage a price war while covering their fixed costs. This war gradually ruins smaller companies. Concentration ensues, and the market is eventually dominated by an oligopoly or monopoly, capable of controlling prices, which is the opposite of the perfect competitive equilibrium resulting from general equilibrium theory.
The gap between theory and reality
In practice, increasing returns to scale can be observed in many sectors. This can lead to the formation of monopolies, high concentrations and oligopolies.
In IT, and particularly in the software industry, returns are increasing. 55 These are fixed-cost industries, with zero marginal cost: the last copy of software costs nothing. The main cost is that of setting up the team, running it and developing the software, all of which are fixed costs. In this case, the company does not sell according to the cost price of the unit sold (with a possible margin), but always has an interest in selling as many products as possible, while avoiding a price collapse.
Many industries have high fixed costs and low marginal costs. Just think of the publishing or audiovisual industries. In the energy sector, highly capital-intensive energies such as nuclear or solar power have very low or zero marginal costs (for more details, see our fact sheet on the electricity market and the one on the cost of financing renewable energies).
Increasing returns can also be seen in the automotive sector, where the top ten of the world’s fifty automakers account for 70% of total production. 56 The banking sector, which has become considerably concentrated, is subject to increasing returns, mainly due to money creation mechanisms. The larger a bank’s network, the fewer “leakages” it has to contend with, and the more money it can therefore create and earn on its lending activities. But size also plays a part in absorbing fixed costs linked to legal, advertising and marketing and structural costs.
In more traditional industries, fixed costs are generally high, and it is not at all obvious that the marginal costs of products sold are decreasing. Manufacturers are all looking for technical advances that will enable the opposite to happen. In many sectors, production costs fall as cumulative output rises (this is the notion of the experience curve, see box).
The notion of the experience curve
This concept was discovered in the USA in the late 1960s by Bruce Henderson. Sales of microprocessors were growing explosively, and their price had been divided by ten between 1964 and 1968. Henderson formulated a simple rule: prices would fall by 25% every time the cumulative output of an industry (dubbed “experience”) doubled. Fifty years later, this rule explains why, as the industry’s experience has been multiplied, in order of magnitude, by 1 billion, microprocessor prices have been divided by 1 million. And that’s why everyone has in their pocket, with their smartphone, a product that would have been worth 200 million dollars fifty years ago!
Source : See La leçon de l’expérience, post by Xavier Fontanet, former CEO of Essilor, on Les Echos (08/02/2018).
Such oligopoly-controlled sectors pose a dilemma for competition policy. Concentration is unfavorable to consumers, as it enables companies to set high prices that are not, or only slightly, mitigated by competition. It also makes it easier for the few dominant companies to influence regulation (see Essentiel 3 and our module on Enterprise). On the other hand, imposing a reduction in company size to increase competitive pressure can prevent “economies of scale” from being achieved. Some observers believe that Europe’s overly rigorous competition policy (see Essentiel 8) has prevented the emergence of “European champions”, particularly in the highly innovative digital sectors. Another cause, however, could be the fragmentation of European research budgets compared to the US federal budget. In fact, competition policy has not prevented the consolidation of major European groups with global reach in the automotive, chemicals or banking sectors, nor, when a few states have been willing to cooperate, has it prevented the emergence of Airbus, the only aerospace group capable of competing with Boeing.
In conclusion, these examples show that increasing returns are the norm rather than the exception. So why have neoclassical economists focused on diminishing returns? For two reasons. Firstly, historical: it’s true that land was farmed in order of diminishing returns. As agriculture was dominant in the 18th century, the hypothesis was unreservedly extended to other sectors. Machinism had yet to prove its worth. The other reason is less noble: the demonstration of the general equilibrium theorem is based on the hypothesis of diminishing returns… To highlight this simple fact too clearly is to risk knocking this fine theoretical edifice off its pedestal.
The work of the neoclassical school on market imperfections
Economists were quick to note, however, that returns can be increasing. Keynesian and Marxist economist Joan Robinson, for example, observed that companies seek to build monopolies that enable them to set prices and make higher profits. This is what economist Edward Chamberlin would later call “monopolistic competition”. In 1977, economists Avinash Dixit and Joseph Stiglitz developed a model of monopolistic competition 57 (which shows how increasing returns to scale interact with product diversity in imperfectly competitive markets).
These questions are at the heart of the industrial economics school, of which Jean Tirole (“Nobel Prize” in economics 58 in 2014) is one of its pillars. 59 This school provides new tools and concepts for analyzing market structures (monopoly, oligopoly, monopolistic competition), firms’ strategic behaviors (pricing, innovation, barriers to entry, differentiation) and the effects of these behaviors on economic efficiency and consumer welfare.
It deduces the regulations needed in a world where imperfect markets are the norm, to avoid abuses of dominant positions while generating incentives for innovation and investment. These studies suggest tariff mechanisms for network industries and for regulating digital platforms. Nevertheless, in seeking to “correct market imperfections”, these studies remain within the same intellectual framework: that of the market as the central reference point towards which the real economy must “converge”. They do not allow us to envisage, or even think about, other types of coordination mechanisms.
Find out more
- Michel Devoluy L’économie : une science “impossible” – Déconstruire pour avancer, Vérone Éditions, 2019
- Benjamin Coriat, The common good, the climate and the market. Réponse à Jean Tirole, Les Liens qui Libèrent, 2021
- Jean Tirole, Theory of Industrial Organization, Economica, 2015
- Jean Tirole, Économie du bien commun, PUF, 2018
- Michel Volle, iconomie, Xerfi and Economica 2014
- See also Increasing returns on the blog of the author, Michel Volle
Operating and regulating competitive markets
In 2008, speaking before the US Senate on the causes of the financial crisis, Alan Greenspan, who had been a fervent defender of free markets and Chairman of the Federal Reserve (the US central bank) until 2006, admitted that he had been mistaken about the supposed self-regulating capacities of financial markets. A few months earlier, Sir Nicholas Stern had declared climate change to be the greatest market failure of all time. In March 2021, the Servier laboratory was convicted in the first instance for having marketed Mediator, a drug proven to be dangerous and responsible for several hundred deaths. But the French National Agency for Drug Safety was also condemned for failing to suspend the drug’s marketing authorization quickly enough. In 1976, the Seveso industrial disaster 60 in Italy caused 30 direct deaths and an ecological disaster. Dieselgate”, the fraudulent use of techniques to reduce the quantities of pollutants emitted by Volkswagen Group cars, put an end to widespread practices in the automotive industry that were seriously damaging human health and the climate.
These examples demonstrate the importance of regulations in the pursuit of the general interest, and the need to have the capacity to enforce them. In reality, there is no reason to believe that “markets” – that is, private enterprises motivated by profit maximization– left to their own devices, serve the general interest. In this Essential, we will first review the various market “failures” that require correction, and the various instruments available to correct them.
The current public policy approach of seeking to “correct” market failures is indicative of a “market economy” framework of thought, in which economic policy is designed to reduce the gap between the ideal of competitive markets and reality.
Making markets work
Before looking at the failings of the “markets”, let’s recall the rules that are essential to their operation in practice, and stress that there’s nothing “natural” about these rules.
Property rights are the basis of markets
The first rule is that there is no market unless property rights are clearly established, and their holders are confident of being able to enforce them. What is commonly referred to as a “market” economy is in reality an economy of private or public “property rights” defined in such a way that they are transferable. The definition of rights is far from trivial, and varies according to the object: land ownership, intellectual property (copyrights, patents), ownership through financial assets (shares). Their protection can be more or less solid, more or less difficult to enforce, more or less dependent on judicial assessment. The exact definition of property rights 61 is always political, and therefore liable to change, in particular to take advantage of new economic and profit opportunities. Political decisions guide both the speed of economic restructuring and its social consequences. Historical examples abound. One of the most famous, considered by Karl Marx to be decisive for the expansion of capitalism, is the enclosure movement, the transformation in the UK of communal property, or property open to common use, into large hedged plots for the exclusive benefit of sheep farming. Begun in the 13th century, it culminated in the adoption, in the late 18th and early 19th centuries, of legislation virtually ending communal property and allowing its transformation into large private estates. 62 A current example is Total’s appropriation of land belonging to the Tanzanian state but traditionally used by peasants. 63 Intellectual property, i.e. the privatization of the use of knowledge – by its very nature a common good that does not wear out when it is used – is a major political issue with immense distributive consequences. 64 (see alsopreconceived notion n°11Thecommodification of knowledge through highly protective patents guarantees a rapid pace of innovation). At the heart of the digital industry, questions of data security and personal data ownership are major issues that divide the world, with Europe being more protective, with the RGPD law and the Digital Services Act. As for “artificial intelligence”, its use raises numerous intellectual property issues (notably for training AI systems) that we won’t go into here.
No courts, no markets
The second condition for the functioning of an open market economy is trust in the respect and fulfillment of contractual commitments. In general, state justice is in charge. Sometimes, however, the contracting parties agree in the contract itself to have recourse to private arbitration tribunals, particularly for international trade contracts. 65 In return for protecting the contracting parties, the law provides a framework for contractual freedom.
In the eyes of the law, not all contracts are authorized and “respectable”, either because of the personality of the contracting parties (abuse of weakness, minority), or because of the purpose of the transaction (prostitution, surrogate motherhood, drugs), or because of “abusive” clauses.
Shakespeare’s play Merchant of Venice brings to a climax the dilemma of public power in a situation where enforcing a contract – a necessity to protect the economic order – would have consequences contrary to the supreme order of the city, which is to protect the lives of its citizens. A similar problem is currently posed by the Energy Charter Treaty (ECT). This Treaty, which aims to protect private international investment in energy against expropriation or changes in legislation affecting profits, is now proving extremely costly for states wishing to implement a disengagement from fossil fuels to combat global warming. Let’s not forget that in Shakespeare’s play, the protection of the physical integrity of citizens ends up taking precedence over the respect of the contract through a threat leading the creditor to renounce of his own accord. He may well get his due, but he will be prosecuted for the incidental consequences.
Find out more
To better understand the institutions that make the market work, we have divided them into four categories: – those that create the market – those that regulate it – those that stabilize it – those that legitimize it
Structuring markets: combating concentration
Attention must be focused on the inequalities between players. This is what competition policies are all about, and we’ll look at some European examples inEssentiel 8. Let’s take an American example. The Sherman Antitrust Act of 1890 was the first piece of modern competition law to outlaw certain anti-competitive practices:
- Cartels (agreements between companies aimed at restricting competition, such as price fixing or market sharing);
- Monopolies: the law also prohibits the creation or domination of markets by a single company in such a way as to eliminate competition. If a company uses a dominant position to exclude competitors or distort competition, it is breaking the law.
- Unfair commercial practices, such as the use of coercive means to exclude competitors, or the exploitation of partnerships and commercial agreements in such a way as to harm competition.
The literature on this subject is extremely rich, and we’ll confine ourselves here to a few examples.
Many economic sectors are dominated by a few companies
The digital sector is the first to come to mind, whether in hardware or software. 66 (Apple, Microsoft, Google, Acer, Nvidia, Samsung, Huawei…) or platforms (Facebook, Amazon, Uber… and their Chinese equivalents (Alibaba, Temu…). What’s more, many traditional industrial and service sectors are dominated worldwide by a very small number of companies. We have already seen a few examples above. Let’s complete the picture. Four companies – Maersk (USA), MSC (Italy), CMA CGM (France) and Cosco shipping (China) – account for half the world’s maritime trade. The agricultural sector 67 is characterized by a large number of farms, surrounded upstream and downstream by some of the world’s most powerful companies. Four companies, John Deere (USA), CNH industrial (Netherlands), Kubota (Japan) and AGCO (USA) capture 53% of the agricultural machinery market. Four companies, Bayer-Monsanto (Germany), Syngenta-ChemChina (China), Dupont-Dow (USA), BASF (Germany), capture 84% of the crop protection products market. Downstream from farmers, 90% of the trade in agricultural products is carried out by four companies: Cargill (USA), Louis Dreyfus (France), Archer Daniels Midland (USA), Bunge (USA). Added to this is concentration in the production and distribution of apparently distinct brands of beverages 68 such as beer. The pharmaceutical industry is also highly concentrated. The top five groups worldwide (Johnson & Johnson, Roche, Pfizer, Bayer and Novartis) account for around a quarter of the market. 69 (This list of highly concentrated sectors is by no means exhaustive).
In the “Business in the Anthropocene Era” module, we discuss the harmful consequences of such concentration (and the resulting corporate gigantism).
The main drivers of economic concentration
In addition to the economic rationale of increasing returns, these concentrations have been favored by three main factors: the liberalization of world trade, and the fall in unit transport costs, in particular due to the gigantism of cargo ships, 70 and the geographical and long-term extension of intellectual property protection. 71 Mergers enable production chains to be fragmented geographically 72 by pursuing strategies of vertical integration, from access to raw materials to marketing, and thus achieve economies of scale. They also make it possible to dilute legal risks (notably social and environmental) that do not accrue to the parent company.
Negative consequences for society as a whole
Such concentrations pose a number of problems. The first, quite classic, is the direct and immediate impact on buyers: prices that are too high in relation to costs, and a weakening of quality. The second problem arises from the ability to influence legislators and supervisory agencies, 73 including through blackmail. The third, particularly visible in the agricultural sector, is the ability to shape production patterns throughout the sector. The economic dependence of many farmers has become such that it has become extremely difficult for them to move away from the intensive agricultural model. Agroecology, despite its ability to feed the world while respecting the planet, clashes head-on with the interests of those companies that have shaped the current model, and made it adopted by the majority of agricultural players, consumers and public authorities. In the pharmaceuticals sector, the geographical fragmentation of production chains contributes to restricting supply, resulting in shortages of basic medicines. In the energy sector, the absence of competition and the ability to influence political decisions enable dominant companies to manage the speed of substitution of fossil energies by renewable energies at a rate that maximizes their financial profitability, but which remains too slow. 74 from the point of view of climate change.
Faced with such mergers, competition authorities are not in a position of strength. They cannot pursue the illusory goal of atomistic competition. When European competition authorities are called upon to judge mergers, they weigh up the potential benefits of economies of scale and the securing of production chains, particularly in the case of vertical mergers, against the weakening of competitive pressure. They must ensure that the market remains “contestable”. 75 They must ensure that the market remains “contestable”, i.e. that established companies are unable to erect barriers to entry. 76
Correcting the main market failures
A first category of “failures 77 that need to be corrected are the so-called externalities externalities , i.e. the actual or potential impact of activities on populations, third-party activities or the environment. Examples include emissions of pollutants (liquid, solid or gaseous), greenhouse gases, noise pollution and the risk of industrial disasters.
A second category of deficiencies relates to theinformation required for an “informed”transaction . Consumers need to be assured that what they consume will not harm them. They may also wish to know whether the goods they buy are produced in conditions that respect workers and the environment. The multiplicity, diversity and complexity of goods consumed preclude an individual assessment, which would be ineffective because information is a common good.
Thirdly, public authorities must regulate “natural monopolies”, in particular infrastructure networks for transport, energy or the exploitation of natural resources (mines, water, etc.). They can do this either by making them public property, or by setting conditions for their exploitation.
The jalopy market or adverse selection
Asymmetrical information between a seller who can differentiate whether a product is of good quality and a buyer who cannot, is also a major cause of market failure. The metaphor of the “jalopy” market for used cars presented by George Akerlof in his 1970 article Market for Lemons illustrates this point. In a simplified version, the buyer is not prepared to pay more than he values the bad product, and the seller is not prepared to sell the good product at the price of the bad one. The buyer’s preference, however, is for the good product, even if paid at the price that would be demanded by the seller. Uncertainty over quality means that either the transaction does not take place, or the buyer buys the bad product at the lower price demanded by the seller (who would also have preferred to sell the better product). The solution is suboptimal from both points of view. The remedy may lie in a credible guarantee given by the seller, possibly combined with a certificate of passing a state-administered or regulated roadworthiness test.
Market short-termism: the “tragedy of horizons
Fourthly, markets are short-sighted, leading to the tragedy of horizons, to borrow a phrase from Mark Carney, then Chairman of the Financial Stability Facility and Governor of the Bank of England, who in 2015 used and popularized this remarkable formula, in relation to climate change. 78 It is clear that, in this field, the “law of the market” does not allow us to take into consideration economic effects (positive or negative) that are revealed over the long term. Markets are short-termist for a simple mathematical reason. The calculations of economic players, and financial players in particular, are made by “discounting” present and future income and expenditure. For listed companies, the discount rate is necessarily close to the rate with which they finance themselves, i.e., the rate weighting the “cost” of equity and debt. To take an example, if the return expected by shareholders on equity is 15%, if debt is raised at a rate of 3% and if it represents 60% of financing, the weighted rate is 7.8%. 79
The usual practice in France for large companies is to use a rate of between 8% and 12%. A rate of 10% leads to a doubling of values every 7 years, i.e. a multiplication by 16 in 28 years. In other words, the horizons considered with this type of calculation are very short (since, conversely, an expense or income appearing in 28 years is worth one-sixteenth of what it would be today!) Another way of expressing the same thing is to note that the investments made by these companies must, according to the financial departments, be recouped in order of magnitude over 3 years.
This “short-termism” is clearly a “market failure”. It applies not just to climate change, but to the whole issue of sustainable development. The market is intrinsically too short-termist to consider long-term issues on its own. Certainly, some shareholders have long horizons, at least for part of their assets, and seek long-term capital gains rather than immediate returns.
But that’s not the majority of them. To reintegrate the long term into the choices made by companies and financiers, we need resolute action from the public authorities.
Finally, there is no reason to believe that “market” mechanisms lead to a socially and politically acceptable distribution of income. The same applies to access to certain essential goods and services, such as health insurance or opening a bank account.
In the following Essentials, we’ll look in more detail at the regulation of two very specific types of transaction that neoclassical theory equates with a “market”: “financial” products and “natural resources”.
Investment, incentives, regulation, pricing: how government can correct market failures
We will confine ourselves here to identifying the various public policy instruments that can be used to steer markets. They fall into three broad categories: public investment, financial incentives (taxation and pricing, transfers and subsidies, credit policies), and the use of public funds. 80 and regulation. Regulatory instruments include transparency and nature protection obligations, prohibitions on collusion or discrimination, mandates (obligations to provide certain services), prudential obligations (insurance, equity capital), labor law, including employee consultation and participation in company decisions (joint decision-making or otherwise), pollution and safety standards – which can take the form of either result-based obligations (maximum emissions of pollutants) or means-based prescriptions (anti-explosion or fire-fighting measures).
In general, policies need to combine several instruments. One reason for this is the need to take account of the impact of measures on all the objectives pursued, particularly on income distribution. Another is that several markets may be “failing”. At first glance, the idea of combating global warming by heavily taxing all greenhouse gas emissions, irrespective of their origin, seems seductive. Those who advocate such an approach suggest redistributing tax revenues to compensate for the loss of purchasing power of the most vulnerable. But there is also the problem of access to credit and the interest for an investor, even an affluent one, of a heavy investment in thermal renovation whose return is only guaranteed in the very long term, and who does not have all the information enabling him to judge the necessity of the means and the quality of the results. This investor, thinking in the shorter term, would see his short-term liquid capital or debt capacity cut back, with no immediate return and no certainty that technological innovations would not render his investment obsolete sooner than expected. This market failure can be corrected by combining a legal obligation to act with subsidies and certification of resources and results by accredited bodies.
The economy can’t be reduced to a market-state pairing
In previous Essentials, we analyzed economic processes in binary terms: on the one hand, markets; on the other, the state – securing transactions and regulating them. We shall see that this binary vision, dominant among many economists, impoverishes the analysis of economic relations and the debate on public policy. It can easily lead to errors of diagnosis and prescription. Here, we describe other ways of contributing to the coordination of economic activities. These modes of coordination complement or replace the state and/or the market, and interact with them. They often fly under the radar, but are nonetheless essential to understanding how the economy works.
The importance of relational networks, particularly in the job market
Wage formation and labor relations are largely shaped by various institutions and regulations, the legacy of decades of political and social struggle. These institutions include labor law, ancillary social rights (retirement, health insurance, unemployment insurance), the right to strike, the right of association and representation by professional organizations, and social dialogue. 81 These formal institutions are complemented by relational networks.
As we saw at the end of the first Essential, Adam Smith poked fun at those who believed that “the equilibrium wage” was linked to the invisible hand 31 of a competitive market. He pointed to the existence of tacit coalitions between bosses which, with the complicity of the authorities, kept wages down. This was made all the easier by the fact that employee coalitions were forbidden and repressed.
The mechanism that holds the coalition together is reputational, i.e. the risk of being excluded from a social network that favors transactions between “trustworthy” people. There’s no doubt that the members of this entrepreneurial “elite” used their collective power for more than just keeping wages down. We can assume that within this coalition, information circulated on the personalities of the workers, on the trust that could be placed in a particular “foreign” merchant, or even on the financial situation of a particular coalition member, and on the best way to organize, and then use, political power to protect “one’s” property rights and rents. 83
At the other end of the social scale from Smith’s coalition, immigrant networks in host countries (diaspora) illustrate some of the mechanisms that emerge when formal institutions or the market fail. The main reason for the emergence of such networks is the replication, in the host country, of solidarity or mutual recognition existing in the country of origin. For their members, these networks are a source of economic and social support, insofar as they facilitate transactions between them, thanks to mutual trust or “spontaneous” solidarity rooted in belonging to the same community. They are also a source of information for new arrivals on the opportunities offered by the host country, particularly in terms of informal employment, even if illegal. 84 Conversely, an employee’s membership of a diaspora can be a source of information for a potential employer, and at the same time constitute an implicit guarantee on the part of the diaspora that the promised service will be provided. Similarly, networks of alumni of recognized professional schools, sometimes organized into formal associations, circulate information and can guarantee certain “qualities”, as can networks based on communities of belief.
However, networks and associations are no more of a panacea than markets. Like markets, they can have major negative external effects requiring state intervention. They can develop parallel economies and clientelism that exclude non-members rather than strengthen the community’s ties with third parties. They may also develop clan and patriarchal structures. Just think of organized crime, whose methods of disciplining members are generally coercive and punitive to the extreme. 85
Networks, professional associations and civil society representation
The emergence of reputational networks or the formation of associations can also be a means of securing transactions between companies. In general, it is all the more likely and necessary when the state is weak (and access to justice is costly, unreliable or inequitable). The state may also consider that the investment it would require to regulate a very specific market is disproportionate to the general interest, or that the “market” can be too easily relocated and placed beyond the reach of jurisdiction for it to regulate effectively. In such cases, members of informal networks may be encouraged to form formal associations and set their own rules and procedures for arbitrating disputes. This is the case, for example, of the New York Diamond Dealers Club. Membership of this association is also a signal to third parties that certain standards have been met, and that arbitration is possible. In this case, the “Club” takes the place of the legal legal system both for relations between its members and in its relations with third parties. The “Club” also has a representation function vis-à-vis public authorities when general interests are at stake.
Formal or informal networks of mutual (re)acquaintance can be the necessary complement to legal systems to create the trust needed in business relationships. This was shown by empirical studies carried out in Central and Eastern European countries during the transition period following the fall of the Berlin Wall. At the end of the 90s, the diagnosis was that the legal system had made sufficient progress to effectively regulate property rights and transactions as a last resort, but that it was important for governments to support the development of institutions such as chambers of commerce or professional associations capable of circulating reliable, non-discriminatory information. 86 The contribution of formal and informal networks to fruitful cooperation and the “economic miracle” of East Asian countries was also recognized. 87
In highly regulated economies such as that of the European Union, trade associations play an important role as privileged interlocutors of administrations and political powers in the making of law. The argument put forward is that these associations bring together and aggregate the perceptions and opinions of their many members, which facilitates the legislator’s task, and that they can provide expertise superior to that of the administration. Of course, this immediately raises the question of counter-expertise and counterbalancing lobbies. The proliferation of non-governmental organizations (NGOs) defending common interests, for example in environmental protection, the fight against tax fraud, or respect for fundamental rights in the context of economic activities in countries with weak administrative and judicial capacity, is part of the answer. However, their ability to act as an effective counterweight depends mainly on three factors: their security (which is not always guaranteed – see the murders of environmental activists in South America), the resources at their disposal, and their de jure and de facto recognition as a legitimate player in political, administrative and judicial decision-making processes.
Cooperative banks
One sector in which relationships and mutual knowledge play a particularly important role in Europe (although to varying degrees from country to country) is that of cooperative banks. These banks traditionally account for a significant proportion of bank credit in many European countries, notably Germany (20% of bank credit in 2022). 88 and Italy (21% of bank credit to SMEs) 89 or in France, with the banking networks of Crédit Agricole, Crédit Mutuel and Groupe Banques Populaires and Caisses d’Épargne. The territorial units are relatively small, with strong roots in the local economy. They specialize in small and medium-sized local businesses or family-run enterprises. Using information obtained through their network of customers and cooperators, they can make informed loans to companies whose transparency would be insufficient for commercial banks, which select their debtors according to standardized “accounting” criteria.
Under pressure from regulators, but also from a financial or economic rationale, cooperative banks have formed networks or integrated into vertical structures, enabling them firstly to gain credibility by signalling or guaranteeing mutual support if necessary in the event of liquidity or solvency problems and, depending on the degree of integration, to achieve economies of scale on common infrastructures (e.g. IT). Several models have emerged in Europe in recent years. These range from networks of banks that are independent, but benefit from an “institutional protection system” (IPS) and are supervised at national level (Germany, Austria, Spain), to fully integrated groups in which local banks are merely branches with no capital of their own (Portugal and Luxembourg), to conglomerates involving a parent-subsidiary relationship (France, Italy) and supervised at European level.
However, this system can also have weaknesses. As the Governor of the Bank of Italy noted in a 2018 intervention, “the line is quickly crossed between a bank that supports local interests and a bank trapped by the region”. 90 From the point of view of financial supervisors, governance reforms in line with the prudential requirements tightened after the financial crisis, and the adoption of credit risk assessment methods in line with accounting standards seemed to be imperative, including in view of the need to reduce the stock of bad debts. But this orthodox approach also runs the risk of destroying the ability to finance sustainable local economic activities.
The contribution of networks and cooperatives to economic activity has been largely neglected by economic research. The latter has developed a vision of the economy that is disconnected from society and made up solely of markets and states. By way of illustration, the table below shows the number of academic references returned by the Econlit bibliographic database, going back to 1900.
Managing the “commons”: the work of Elinor Ostrom
Elinor Ostrom, political scientist and 2009 co-winner of the Nobel Prize in Economics 91 attacked the binary representation of economics. She has shown that this representation is particularly detrimental when it comes to conserving a “common”, for example a natural resource in limited supply or only renewable at a finite rate: the climate, aquifers, fishery resources, a meadow, a beach. The metaphorical representation of these issues by economists is that of a “tragedy” leading inevitably to failure, unless a coercive power (the state) intervenes or the common good is privately appropriated. The best-known metaphor for tragedy is that proposed by the economist Garret Hardin 92 The most well-known metaphor of tragedy is that proposed by the economist Garret Hardin: a pasture left freely accessible, which each herder will exploit to the maximum because he anticipates the overexploitation of the meadow, with other herders doing the same. Of course, this result is due to the assumption of free access and the unreflective, non-cooperative approach of the herders. This metaphor can be reformulated in terms of a strategic game similar to that of the prisoner’s dilemma, which facilitates its validation by economists postulating the absence of any human predisposition to cooperation. If the metaphor uses the image of the prairie, the same reasoning is often applied without differentiation to a financial or monetary “common”. 93 or to questions of international cooperation (international trade, development aid, biodiversity protection, the fight against climate change, tax evasion, etc.).
State management or privatization are false solutions
Elinor Ostrom shows two things 94 The first is that the solutions generally advocated – coercion by a state power (“the Leviathan state”) or privatization – however attractive they may seem at first glance, are rarely operational. An effective state solution presupposes that the state has the relevant information on the load ensuring the regeneration of the grassland, on the behaviour of breeders, on the right level of sanction and that it controls the cost of management. 95 The privatization solution presupposes that it is possible to divide up the common in an accepted way (by simple or qualified majority, unanimously, by a dictator?), which poses a problem in the case of heterogeneous plots. The privatization solution becomes even more problematic, if not impossible, when the commons is fluctuating or difficult to encircle, such as aquatic or fishery resources, and even more complicated when the climate is a global commons.
At what level should the commons be managed?
The second observation is that solutions exist if we remove the assumption of non-communication between stakeholders, and assume that the latter are social beings endowed with reason who are neither mute nor deaf to the arguments of others, and who wish to find a profitable compromise (in short, Aristotle’s “political animals”).
The research program led and inspired by Elinor Ostrom has always been nourished by a back-and-forth between empirical observations and the construction of a theory of the government of the commons. The first observation was that, contrary to tragic predictions, many commons have existed and continue to exist in many sectors and geographical areas. 96 The second is that it is possible to identify certain regularities in the way they are managed, even if there is no miracle solution or single solution, or at least no known solution to every common management problem.
The management and preservation of the “commons” depend on agreement between the parties involved. This agreement essentially concerns the rights and obligations of each party, sanctions and monitoring mechanisms, as well as procedures for adapting these rules. The idea is that the stakeholders, better and faster than a third party such as a central administration, should have the information they need to define the rules, react to unexpectedly damaging developments or penalize non-compliance. Another way of approaching the issue is to differentiate between rights to the “common”, and overcome the simplistic assumption of free access. It is, for example, possible to distinguish five “different” rights over a domain or natural resource that can be attributed to stakeholders: the simple right of access without the right to take, the right to take, the right to manage and regulate, the right to exclude access and the right to sell or lease. 97 It is from their combination that a sustainable and accepted solution for the use of the Hardin meadow will emerge.
Decentralized management does not rule out a higher level imposing a constraint or objective. If cooperation is not “spontaneous”, one possible solution is for a third-level authority to prohibit the use of the “common” before agreement has been reached between the parties involved. In this way, the European Union is both committed to the international community by the Paris Agreement on greenhouse gas emission reduction targets, and committed to national targets that leave member states a wide choice of means and how they will mobilize national players. In another example, the causes of water resource scarcity in certain European regions require a balance to be struck between what needs to be imposed by a higher authority, whether jurisdictional or politico-administrative, in order to adjust total demand to sustainable supply, and what needs to be agreed between the various users.
The example of the Hardin meadow shows that the sustainability of a common good is jeopardized if access to it cannot be restricted by local stakeholders. The question becomes more acute when a service is associated with the management of a natural resource in a territory that is by definition non-extendable, such as a ski area. The “community” of local resident professionals, such as alpine guides, has a vested interest in its preservation and reputation (safety). Allowing opportunistic and episodic arrivals of “stowaways”, professionals who are “foreign” to the area, can easily lead to a deterioration in the local community’s interest in safeguarding this resource.
The question of the relevance of Ostrom’s teachings arises at a time of crisis for the global commons – climate, biodiversity and ocean pollution – with the cascading crisis of the local commons – public health, the drying up of water tables, deforestation through burning or logging, air quality in urban areas and near industrial sites, and water. We will return to this contribution inEssentiel 7, devoted to the commodification of nature.
Faced with ecological crises, linking the local and the global
In practice, the fight against climate change requires the mobilization of all levels of decision-making, from local to global. Let’s insist on the territorial level. A large part of the necessary reductions in greenhouse gas emissions involves restructuring the use of public roads in towns and cities, and the use and maintenance of land and water resources in rural areas. Thermal renovation of apartment buildings and decentralized communities producing/consuming electricity from renewable energies are also part of the solution. What’s needed, then, is a form of governance capable of linking the local and the global. While price signals can “help”, they are by no means sufficient. The deployment of electric vehicles presupposes a coherent approach to the deployment of electric recharging (private and public), the adaptation of electricity grids and vehicle sales. Coordination between regions, départements and communes for public transport networks is decisive, as is the often local support for the renovation of thermal flats, often inhabited by people with low incomes who are unable to invest whatever the price of energy. Similarly, local banks may or may not play a role in supporting SMEs and households in this transition. Finally, the investments to be made must generally take account of climate drift, for which the carbon price signal provides no information.
An idealized vision of markets does not allow us to build effective public policies, even if they have to play on the price signal and, if need be, according to modalities that can vary according to numerous criteria, far from the purity of the models. In all cases, they must mobilize other instruments and a complex governance architecture from local to international levels.
Part of our business takes place outside the marketplace
Originally, neo-classical theory focused on market transactions. In this vision, the firm is reduced to a (mathematical) production function, and the entrepreneur to a deus ex machina who efficiently combines the factors of production. 98 This assumption is counter-intuitive when we observe modern economies shaped by complexly organized companies. However, it underpins the postulate that the ideal competitive market is supposed to produce an optimal equilibrium.
Employment contracts
In this simple expression, neo-classical theory is unable to explain the existence of capitalist companies that organize production and services internally, not on the basis of market exchanges, but according to rules defined and implemented in a hierarchical system. This is particularly evident in labor relations. Unlike a service contract with an independent counterparty 99 the employment contract is not a market transaction in the sense of a monetary exchange for a service or good. It creates an explicit bond of subordination within the limits defined by law and the employment contract. This bond of subordination enables the employer to control not only the product, but also what task is performed and how it is performed. More generally, the movement of services or goods between two departments of the same company is not a market exchange, but rather one maintained by routines or instructions. 100
Avoiding transaction costs: relations between internal departments in companies
Ronald Coase was the first to point out, in 1937, that it was not possible to be content with a vision in which the “economic system works on its own” thanks to the price mechanism, when there are many situations in which economic activities are induced by instructions given in hierarchical systems (companies). 101 The question was taken up again in the 1960s by Kenneth Arrow and Oliver Williamson. 102 Their original research question was to find an explanation for the vertical integration of companies. 103 If the market is efficient, what is the point of a company merging with upstream or downstream partners?
The answer, inspired by Coase (1937), is that recourse to the market has a so-called “transaction” cost. These transaction costs are essentially made up of the costs of obtaining information on potential counterparties, advertising, information on the good to be exchanged, negotiation, finalization and monitoring the completion of a contract, as well as the risks of default by one of the parties.
Some transactions can be carried out at lower cost within the company. They are then said to be internalized. Let’s take the example of a construction company that needs stability studies. But this requires, among other things, that it establishes terms of reference as precisely as possible, shares information that it would prefer to keep confidential, ensures that the study will be completed on time (with the risk of legal proceedings) and that the firm will have worked in its best interests (minimizing construction costs while taking regulations into account). It can also develop a relationship of trust with a design office and work exclusively with it, construction after construction, thereby reducing the risks to the quality of the result; or integrate the design office into its own structure, which also enables it to control the way things are done. Such integration may, incidentally, require investment in internal control and incentive mechanisms to compensate for any information asymmetries between the manager and the contractor. 104
Vertical integration, subcontracting and off-market coordination
Statutory companies have another advantage: they are more sustainable and their governance is more transparent, including the legal conditions for their bankruptcy. This increases predictability for their financiers, whether shareholders or creditors, making it easier for them to commit. As a result, companies can increase their sources of financing. This, in turn, facilitates their ability to achieve economies of scale, benefit from the accumulation of experience and preserve know-how.
International agreements to protect investment and intellectual property, and the liberalization and expansion of financial markets have, over the last few decades, increased the opportunities available to companies to expand globally. The vertical integration of production has changed: typically centralized production chains have become fragmented. This fragmentation has led multinational companies to outsource, relocate and seize opportunities offered in different countries in terms of labor costs, (weak) environmental protection and/or taxation and, where applicable, civil or criminal liability. Even if the companies concerned are legally independent, this does not generally alleviate the dependence of suppliers on their principals and the need for “off-market” coordination.
It’s understandable, then, that the limits of the company, the choice to “buy or produce”, “internalize or outsource” certain activities, “own or not own” supplier or customer businesses, are not set in stone and are subject to successive experimentation.
Find out more
- Elinor Ostrom, Gouvernance des biens communs, De Boeck, 2010
- Garrett Hardin, The Tragedy of the Commons,1968 (French edition: PUF, 2018)
- Ronald H. Coase, The nature of the firm, Economica, 1934
- David Bollier, Think Like a Commoner: A Short Introduction to the Life of the Commons, New Society Publishers, 2014
- Josette Combes, Bruno Lasnier, Jean-Louis Laville, L’économie solidaire en mouvement, Eres, 2022
- Duncan Watts, Six Degrees: The Science of a Connected Age, W. W. Norton, 2003
History of market self-regulation
As we’ve seen, the founding myth of market equilibrium dates back to the end of the 18th century, at the start of the thermo-industrial revolution. The 19th century saw numerous economic crises, which economists of the time and of the early 20th century called “business cycles”. The 1929 crisis was a major turning point: it did not resolve itself. The economist John Maynard Keynes theorized the need for state intervention, against classical thinking. The war brought the Western economies out of crisis, and the post-war period saw the emergence of economic models that were regulated in various ways and sometimes “directed”. At the same time, the Keynesian revolution gave rise to a counter-revolution: neoliberalism, which inspired the most liberal economic models. Let’s take a closer look at these few points.
The economic cycles of the 19th century
The 19th century was marked by the emergence and development of industrial capitalism, and saw a number of economic cycles. 105 called Juglar cycles, after the economist who first identified them, alternating between phases of growth and recession. Economic crises, which are key turning points, reflect tensions and imbalances in the system. Clément Juglar identifies around ten of them throughout the 19th century, each separated by around ten years. In short, he shows that these cycles are linked to those of credit: in phases of economic expansion, prices rise and banks lend easily, until they reach a turning point, which is in fact a crisis of poor sales (or overproduction). The banks then turn off the credit tap and raise interest rates. Prices fall, and bankruptcies multiply, until the fall in prices gives rise to a new dynamic and a recovery that will once again spark innovation and anticipation, until a new crisis strikes.
The crisis of 1929
The crisis of 1929 was one of the major economic events of the 20th century, fundamentally challenging conventional economic thinking. Authorities (including the Fed in the US) expected the economy to recover on its own, as in the cycles of the 19th century. Nothing of the sort happened. Let’s summarize the history of this crisis.
On October 24, 1929, known as “Black Thursday”, investors began to sell their shares en masse, causing prices to plummet. The panic intensified over the following days, culminating on “Black Tuesday” (October 29). In the space of a few weeks, the New York Stock Exchange lost almost 90% of its value, ruining many shareholders. This stock market collapse marked the start of a global economic crisis. In the United States, thousands of banks fail, wiping out the savings of many households. Credit became scarce, paralyzing the economy. Industry and agriculture suffered a sharp drop in activity. Unemployment reached 25% in 1933. Millions of Americans found themselves unemployed and often reduced to poverty. The crisis quickly spread internationally, as economies became increasingly interconnected. American exports collapsed, affecting countries dependent on their markets, such as Germany and Latin American nations. Protectionist policies, such as the Hawley-Smoot tariff s (1930), aggravated the situation by reducing trade.
Faced with the scale of the crisis, the authorities’ initial (lack of) responses were rooted in classical economic thinking. In the United States, President Herbert Hoover remained committed to a policy of non-intervention, exacerbating the effects of the depression. As for Fed Chairman Roy A. Young, he did not intervene to save the banks. 106 and, on the contrary, tightened credit conditions, aggravating the crisis. It was not until 1933, with the election of Franklin D. Roosevelt, that significant measures were taken. Roosevelt launched a program of economic and social reforms (the New Deal) aimed at boosting demand, supporting employment and regulating the financial sector. These measures include the creation of a social security system, major public works and banking regulation (Glass-Steagall Act).
Worldwide, governments began to move away from economic liberalism towards interventionist policies. In Germany, Chancellor Brüning’s deflationary response worsened the economic and social situation and facilitated Adolf Hitler’s rise to power.
The crisis of 1929 never really went away: in 1939, world war broke out, and the rise of a war economy put the economy back on track.
Keynes’s critique of laissez-faire
John Maynard Keynes was both an actor and a committed observer of the 1929 crisis. He fundamentally challenged the dogma of market self-regulation, or “laissez-faire, laissez passer”. For Keynes, it was not true that the crisis would resolve itself. In his seminal book The General Theory of Employment, Interest and Money, published in 1936, he wrote:
The proposition that “supply creates its own demand” is fallacious if interpreted in the sense that it implies that all the income created by production must always be spent on consumption. Some of it can be saved, but if it is not invested, it will not contribute to effective demand.
Chapter 2, from which this quotation is taken, is devoted to a critique of classical postulates, including J.B. Say’s law of opportunities, which forms the basis of general equilibrium theory, the heart of neoclassical economics.
The neoliberal vision of the market
The neo-liberal ideology came into being under the impetus of Friedrich Hayek, in reaction to Keynesianism and the rise of communism around the world. For the neoliberal school of thought, the market is the best regulator of economic activity, and the mission of politicians is first and foremost the legal protection of private property and the enforcement of contracts. The second is not to hinder the free movement of goods and services, people and capital. The State must confine itself to setting the rules of the game and intervening to compensate for market failures, rather than substituting for them. It must set and respect the rules of the economic game. It must be a regulator. In short, the State must serve private interests.
The unrealism of competition policies aimed at establishing and preserving atomistic markets is recognized. Neoliberals are therefore not opposed in principle to economic concentration. They believe that competition policies should seek – with nuances between jurisdictions – to strike the right balance between the efficiency gains generated by economies of scale and the fight against abuses of dominant positions that put up barriers to new entrants. This is also the case for the “labor market”, which needs to be flexible to enable optimal allocation of the workforce and improve economic competitiveness. Trade unions are seen as obstacles to this flexibility.
Different market approaches coexist around the world
Here, we’ll be looking at how, in reality, countries emerging from the Second World War have regulated markets according to their culture, institutions, laws, power relations… and events. We will exclude here the case of China 107 which is very specific.
How can we make sense of the complexity of today’s world? The first distinction to be made is between more liberal, Anglo-Saxon capitalism and more cooperative capitalism (continental Europe and Japan). In his book Capitalisme contre capitalisme (Seuil, 1991), who proposed this distinction, calling the more cooperative capitalism “Rhenish”. This distinction is quite intuitive. The Anglo-Saxon business world (United States, Australia, Canada, Australia, New Zealand) believes more in the need for individuals to make their own way, to achieve individual success, and quickly equates state intervention with deprivation of freedom and inefficiency. Companies exist to serve the interests of their shareholders, and this is how they work towards the general interest, which is identified with economic performance. The difficulties faced by the poorest are relativized or considered as inevitable. In contrast, the so-called “Rhineland model” believes in the need to protect the weakest and most disadvantaged, and seeks to temper the free play of the market when it creates excessive inequalities or even poverty. This model is more sensitive to the long term than the liberal model.
This broad distinction can be seen, for example, in the open conflict (in 2024 and 2025) between the “proponents of Corporate Social and Environmental Responsibility” (and the need for extra-financial reporting and constraints on companies to ensure they take social and environmental issues into account, following the example of the European CSRD directive) and those who consider that there is no need to constrain companies in this way. This conflict is at the heart of a challenge to the European Green Pact agenda. 108 Behind the not entirely unfounded criticism of overly cumbersome administrative regulations, the fundamental criticism of certain private players is always the same: “Let the public authorities leave us to it; we know better than anyone what we have to do”.
This distinction was explored in the so-called Variety of Capitalisms theory.109
The “Varieties of Capitalism” approach
This theory distinguishes between liberal market economies (LMEs) 110 and coordinated market economies (CME, the name given to Rhenish capitalism). It is concerned only with the so-called developed economies.
The former are characterized by fierce competition in the goods and services markets, flexible employment, a responsive financial system that encourages rapid restructuring, and a low level of public social protection. 111 The latter are distinguished from the former by the presence of institutions that facilitate mutually beneficial cooperation.
To overstate the case, a “typical” coordinated market economy in a developed country is characterized by cross-shareholdings in companies, and powerful associations of employers and entrepreneurs favoring the flow of information and technology transfer. This, in turn, creates a favorable climate of trust, enabling access to “patient” capital that is less dependent on short-term results than recourse to competitive financial markets. Financial systems in EMCs are oriented towards long-term relationships. Companies rely less on stock markets and more on banks and other financial institutions for financing. This limits the pressure for short-term results and encourages sustainable investment.
In terms of employment regulation and governance, the definition of product standards is largely in the hands of trade associations. Wages are set not at individual level, but in negotiations at national or branch level between employers’ associations and equally powerful employees’ unions. Vocational training is organized at branch level under the control of employers and trade unions. It is based on shared know-how and responds to the specific needs of companies in the sector. Within companies, significant rights are granted to employee representatives, facilitating long-term management.
The “five capitalisms” approach
The “Five Capitalisms” approach 112 differentiates the ideal type of EMC in developed countries into four main groups. In brief, it distinguishes :
- the Scandinavian countries (social-democrats), which give a central role to the social partners and are very egalitarian in terms of social protection and wage scales, with very active policies for training and professional reintegration.
- the model of central-northern (continental) Europe, less egalitarian and where income protection is limited to the poorest.
- Southern European (Mediterranean) countries, with greater employment protection and less social protection than in Northern Europe.
- The fourth group is made up of Asian economies, based on the development of large firms operating in informal collaboration with the state, and a centralized financial system. Employees of these conglomerates are de facto protected by a stable career policy.
Here is a table summarizing the differences between these models:
Globalization versus coordinated market economies
Let’s not forget that financialization and globalization were the result of political choices initiated in the United States under President Reagan and in the United Kingdom under Margaret Thatcher, and imitated in several other countries. Let’s also remember that the rise of China (with its very specific form of “state capitalism”, if we dare call it that) has also greatly destabilized the “coordinated” economies. This powerful dual movement has put them in difficulty, both through its strong appeal to consumers (low prices from China and constant innovation from the United States, particularly in digital technology and telecommunications (with smartphones and all their installed applications) to simplify matters), and through insufficient protection for producers from international competition.
These countries have responded, and continue to respond, to this pressure in a variety of ways. Partial adaptations are taking place, but at this stage they have not led to “pure” Anglo-Saxon-style institutions. There are winners and losers, and their implementation depends on the resistance to them and their supposed impact on the social groups likely to form majority political coalitions. At European level, however, this resistance is weakened by the construction of the neoliberal European market (see Essentiel 8).
Let’s illustrate this point with the example of Germany.
The deregulation of the labor market initiated by the Schröder government in the first half of the 2000s did not call into question the power of employees within companies, despite pressure from management to roll back parity representation on supervisory boards and weaken works councils. Collective wage bargaining still covers 55% of employees (compared with 65% in the early 1990s and, by way of comparison, 13% in the USA).
On the other hand, the lifting of regulatory limits on temporary work and the tightening of unemployment insurance conditions have led to the casualization of low-skilled employees and a dualisation of jobs: on the one hand, well-paid skilled workers with permanent contracts, and on the other, low-paid precarious workers. The ensuing rise in inequality and pressure on low wages led to the introduction of a minimum wage in 2015, under pressure from the unions and the Social Democratic Party.
In the early 2000s, the commercial banks exerted pressure, relayed by the European Commission, to bring the savings banks owned by local authorities and the development banks owned by the Länder (regions) under the common commercial regime. The German political class almost unanimously resisted, in order to avoid the foreseeable dismantling of a savings bank network with strong local roots and popular appeal. A compromise was reached to safeguard the privileged status of the savings banks. 113 This public-law status has been preserved to this day, despite recurrent pressure from commercial banks and calls for privatization by orthodox economists.
Examples like these could be multiplied, but the German case clearly demonstrates the ambivalence of European construction in its reaction to the violence of the liberal model (EML).
Anarcho-capitalism
Far removed from the state regulation of the market we have just discussed, anarcho-capitalism 114 referred to by Javier Milei, President of Argentina, and above all by Donald Trump and his entourage 115 challenges the state in all its functions. Its promoters dream of territories where business is free from laws, taxes, environmental regulations, labor laws, etc., and is governed solely by transactions. Canadian historian Quinn Slobodian describes, in his book Le Capitalisme de l’apocalypse ou le rêve d’un monde sans démocratie (Seuil, 2025), he describes “zones” that approach this ideal and fragment the “regulated” world. He counts 6,000 such zones worldwide 116 of 82 different kinds.
According to anarcho-capitalists, compulsory levies and regulations (legislation, decrees, administrative measures, etc.) are illegitimate. And they see no need for the state to guarantee private property. They favor the privatization of all services. They oppose all forms of non-voluntary redistribution by the state, which they regard as theft.
Needless to say, this system is both extremely violent for those who cannot survive on their own, and anti-democratic. Even though it claims to want to get rid of public power, it requires strong power (contrary to the idea of anarchism) to quell the inevitable uprisings of the system’s “damned”. Today, this ideology is favored in the United States by a handful of billionaires. 117 close to Trump, obsessed with their own enrichment and totally indifferent to the fate of other human beings.
It is curious to note that this anarcho-capitalism is not without proximity to what economists Pierre-Yves Hénin and Ahmet Insel 118 have called “National Authoritarian Capitalism” (NaCA), the most notorious example of which is China, and the one closest to home, Hungary. In both cases, democracy disappears in favor of a plutocracy that increases the “wealth pump” from the bottom up. Donald Trump is likely to be tempted by both visions.
Find out more
- The Great Depression: Anatomy of a Financial Catastrophe, John Kenneth Galbraith, Payot
- Bruno Amable, Les cinq capitalismes, Seuil, 2023
On anarcho-capitalism
Financial markets
Definition and role of a financial market
In this section, we focus on financial markets, whose development and international openness are at the heart of today’s economic system. Company managers have gradually come to see competitive financial performance, determined on international markets, as their primary, if not sole, evaluation criterion.
A financial market 119 is a place, physical or virtual, where market participants (buyers, sellers; who may be financial institutions, companies or individuals) trade financial products, which may be listed continuously, or at certain times of the day. Operations can be automated(algorithmic trading, part of which is high-frequency).
Financial markets provide financing for the economy, investment for investors, risk allocation and management, and liquidity for securities. For example, to meet their financing needs, companies, governments and public authorities rely in part on banks. They may also issueshares,bonds and other debt securities.
The different types of financial markets
These financial securities are issued on a “primary” market. For example: an IPO, a capital increase or a bond issue.
Once the issue is complete, these securities will be traded by various buyers and sellers, on what is known as the “secondary” market.
Classifying financial markets
There are several types of financial market, characterized by different criteria: economic, organizational and by the nature of the commitment.
In economic terms, markets are distinguished according to the financial securities traded on them:
- the equity market for capital financing of companies (including banks);
- the bond market for financing companies (including banks), governments and local authorities through long-term debt;
- the money market for financing banks, companies and local authorities through short-term debt (less than one year);
- the derivatives market for risk hedging ;
- the foreign exchange market ( Forex) 120 ;
- the commodities market and CO2 quotas.
From an organizational standpoint, a distinction is made between organized markets and over-the-counter(OTC) markets.
An organized market is a trading venue where the mechanism for disseminating and matching buy and sell orders is governed by rules approved by the market regulator (such as the AMF in France). Once the transaction has been completed, a clearing house (such as Euronext in Paris) guarantees the successful completion of the operation, ensuring that the commitments of the buyer and seller are respected.
This type of market offers information to stakeholders (it is transparent to a certain extent) and liquidity, with rules designed to protect investors. Examples include stock exchanges (New York Stock Exchange, Euronext, Tokyo Stock Exchange, etc.) and derivatives exchanges (Chicago Mercantile Exchange, where futures on commodities, currencies, interest rates, etc. are traded; Euronext Liffe, where options and futures on stock indices are traded, etc.).
However, organized and regulated markets are not immune to general dysfunction, as the major financial crises have taught us. Nor, at the microeconomic level, are they efficient (seeMyth #4 – Financial markets are efficient). As Robert Shiller has shown 121 corporate stock values can be linked to market euphoria and fads rather than to substantial economic underpinnings. However, these markets are by definition safer and more susceptible to regulation than OTC markets.
In an over-the-counter (OTC) market, financial intermediaries are in direct contact with each other: they negotiate and process the terms of the transaction themselves. Generally 122 the OTC transaction is not handled by a clearing house, which would guarantee its successful completion. In this case, therefore, the risks are higher for the parties involved. 123 in return for greater flexibility, personalization and confidentiality. At macro-financial level, the lack of transparency in OTC transactions is a source of systemic risk, as demonstrated by the 2008 crisis, which has led to attempts at regulation.
A few examples: electronic currency trading platforms such as Reuters Dealing or Electronic Broking Services, the OTC Markets Group in the USA, where shares in unlisted companies are traded, etc.
Finally, financial markets can be distinguished by the nature of the commitment made by stakeholders.
- On the spot market 124 the buyer pays the agreed amount and the seller delivers the financial security within a timeframe that is generally two days after the trade. However, this is not the case for high-frequency (algorithmic) trading, where transactions take place almost instantaneously. Settlement times, in terms of delivery and payment, can be close to zero, as positions are often opened and closed in an extremely short space of time.
- On futures markets: buyer and seller commit to a transaction at a future date for an agreed product, quantity and price.
Financial innovations and their link to the real economy
The evolution of capitalism has been accompanied byfinancial innovation and the rise of financial markets since the first stock exchanges in the 15th century. The financialization of the economy accelerated considerably from the 1970s onwards. There are two main reasons for this acceleration.
On the one hand, the end of the Bretton-Woods agreements, decreed unilaterally by the President of the United States in 1971, put an end to fixed exchange rates between the major currencies. The reappearance of this exchange rate risk created a need for “risk hedging” on the part of companies. In response, currency futures were introduced on the Chicago Mercantile Exchange (CME) in 1972. This was one of the first organized markets enabling companies and investors to hedge against currency risk. It’s quite clear that this need for hedging is real: industrial companies generally consider that it’s not their business to manage such risks. They transfer it to a financial player, acting in the same way as when they take out an insurance policy (the only difference being that insurance is often compulsory).
On the other hand, financial mathematics underwent a fundamental innovation in 1973, with the publication of the article The Pricing of Options and Corporate Liabilities by economists Fischer Black and Myron Scholes. 125 This article laid the foundations for a revolutionary mathematical method for valuing options and other financial derivatives. 126 which contributed to the boom in derivatives markets. From the publication of the formula 127 the Chicago Board Options Exchange (CBOE), the first exchange to specialize in options, was founded in 1973. The formula was quickly adopted for options pricing, and many exchanges followed the CBOE’s lead in introducing equity options and other derivatives. In the 1980s, with the rise of computers in the financial sector, the Black-Scholes formula became a common tool for traders and financial analysts, who could now automate the calculation of option prices.
A brief history of stock exchanges
A stock exchange is a financial market where financial assets such as stocks, bonds, currencies and commodities are traded. Investors buy and sell these assets to make a profit, based on changes in their value. Stock exchanges enable companies to raise funds by issuing shares or bonds, and offer investors a platform for investing and diversifying their portfolios.
History of the Stock Exchange
The earliest forms of stock exchange date back to the Middle Ages, with exchanges organized in cities such as Antwerp and Bruges. However, it was in Amsterdam, in the early 17th century, that the first modern stock exchange was established in 1602. It was the first to allow trading in public shares, with the creation of the East India Company, one of the first companies to be listed on the stock exchange. The development of financial markets was subsequently marked by the creation of the New York Stock Exchange in 1792, followed by the London Stock Exchange in 1801.
The privatization of stock exchanges
Originally, stock exchanges were public or semi-public entities, regulated by governments to ensure their smooth operation and transparency. Over the course of the 20th century, however, a number of factors led to their gradual privatization. In the 1980s and 1990s, with the rise of globalization and financial markets, stock exchanges faced increased competition. Electronic trading and the rise of new technologies made transactions faster and cheaper, putting traditional stock exchanges under pressure. Privatization was seen as a way of increasing efficiency and profitability. Privatization also enabled stock exchanges to diversify their activities and explore new sources of revenue, while maintaining their role as trading centers for financial securities.
For example, the London Stock Exchange was privatized in 1986 and became a listed company. Similarly, the New York Stock Exchange was privatized in 2006, following its merger with the Archipelago Group.
The Paris Stock Exchange
The Paris Bourse was founded in 1724 as the Bourse des Marchands de Paris, primarily to facilitate the exchange of goods and financial securities. Throughout the 19th century, it developed into one of Europe’s leading financial centers. In 2000, the Paris Bourse, along with other European stock exchanges (such as Amsterdam, Brussels and Lisbon), merged to create Euronext, a pan-European trading platform. The aim of this merger was to compete with the world’s other major financial centers, such as the London Stock Exchange and the New York Stock Exchange, by unifying several stock markets and offering a wider range of financial products.
Euronext thus became one of Europe’s largest stock exchanges, with financial securities and options markets. It quickly integrated additional exchanges to strengthen its position, such as the Amsterdam, Brussels and Lisbon stock exchanges. In 2001, Euronext became a listed company. In 2007, Euronext merged with the New York Stock Exchange (NYSE), forming the NYSE Euronext group. In 2014, Euronext once again became an independent company following its takeover by Intercontinental Exchange (ICE), which took over control of the NYSE, thus separating the two entities.
Financial markets have exploded in diversity, size and depth. From the point of view of companies and (wealthy) citizens, they can be seen as providers of key services, as seen above (provision of financing, investment, liquidity and risk management). But they have also acquired an autonomy from the real economy: high-frequency trading, for example, developed because it was in the interests of operators, not in response to market demand. But this is also the case for many derivatives, as economist and former trader Thierry Philipponnat shows in his book Le Capital, de l’abondance à l’utilité (Éditions de l’échiquier, 2017).
“The purchase of a credit or foreign exchange derivative generates flows only between financiers and cannot therefore be considered an investment.”
We will also see that, contrary to popular belief, financial markets are not efficient.
Smoke markets
Not only are financial markets inefficient, they have also lost a property that neoclassical economists consider essential: the fact that price is an indication of relative scarcity. The rarer a product (or raw material or by-product), the more expensive it is. At a deeper level, price is information considered necessary for entrepreneurial decision-making, as Friedrich Hayek makes clear:
“It’s more than a metaphor to describe the price system as a kind of machinery for recording changes, or a telecommunication system that allows individual producers to simply watch the movement of a few indicators, as an engineer might watch the hands of a few dials, in order to adapt their actions to changes of which they can only ever know what the price movement reflects.” 128
But in highly financialized markets, this is not the case. Price volatility increases, blurring the price signal. As Nicolas Bouleau has shown 129 . Let’s summarize the arguments in his words:
1/ Instantaneous prices, or spot prices, provided by the financial markets are very turbulent. If we compare international prices for wool and cotton, we can see that the relative price often doubles in the space of two years. In times of crisis, the price of oil can vary from 1 to 4 in the space of a month, and commonly by 50% in a year. And as we have shown in a fact sheet on the price elasticity of energy, the volume of oil consumed worldwide does not appear to be price-dependent. Similar movements can be seen in metal prices (gold, antimony, cadmium, zinc, nickel, palladium, silver), which are not obviously correlated with each other or with oil.
2/ The reason for this agitation is speculation, a term expressing the possibility of instantaneous purchase and resale. Let’s imagine a market in which we are obliged to keep what we buy for a certain period of time – for example, the real estate market, given the length of time it takes to register notarial deeds, which is several months in France. In such a market, the instantaneous trend is clearly perceptible, and indicated by the agencies. The transition to “continuous time” (instant buying and selling) creates a rupture: agitation or speculation become decisive, rendering trends invisible or uninterpretable.
3/ In a speculative market, it is not possible to reveal trends: the methods supposed to reveal them are inoperative. If they gave an objective result, not dependent on the method, it would immediately be used to make a profit, and the price would change. Worse still, there are specialized teams on every continent, equipped with vast computing, mathematical and statistical resources, who spend their time detecting the slightest possibility of “arbitrage” and manage to profit from it. But this is precisely what puts such trend readings beyond the reach of economic players. It’s impossible for an entrepreneur or even a lone trader to do better than these specialized teams.
This blurring characteristic has a very profound environmental consequence. It implies that the price does not inform about the scarcity of the resource. 130 The fact that the price of oil exceeded $140 a barrel in 2008 (its highest price ever) is no indication that it was going to run out, and conversely a low price could be observed before a real shortage. This calls into question the famous “Hotelling rule”. 131 .
Markets and the environment: can we bargain with nature?
Business accounting and household accounts do not take into account the positive or negative impacts of our activity on nature, nor the services “rendered” by nature. 132 This is because nature does not get paid for the services it renders or for the damage it suffers, and, conversely, does not pay human beings for any “reparations” it may receive. As a result, the “economic calculations” of economic players based on these accounts do not take these impacts and services into account. Only that which is counted counts. In other words, the price does not represent all the costs and benefits generated by the economic activity.
From an economic point of view, this simple observation can justify the creation of mechanisms to reintegrate these costs and benefits into economic life, simply by assuming that economic players are not rational in the sense of neoclassical theory, but more modestly in the sense that these players take into account the price and quality of the goods and services they purchase in their purchasing decisions.
We can imagine (and note the presence of) several devices designed to take Nature into account:
- bans (e.g. nature reserves on land or at sea, which prohibit human activities in the area concerned, or bans on the marketing of toxic products);
- regulations limiting withdrawals, waste or pollution/destruction or requiring treatment (in the case of waste). 133 or to “compensate” for them (in the case of withdrawals or pollution) 134 ;
- monetization of services and pollution through taxes, subsidies, payments for environmental services, or legal action;
- monetization through the creation of tradable rights markets;
- the creation of “climate derivatives” (see box);
- community management of natural resources (where the economic dimension is “internalized” by the community).
Climate derivatives
A climate derivative is a financial instrument that can be used to hedge against climate-related risks. Weather derivatives are contracts whose payments depend, in one way or another, on the weather. Underlyings can be, for example, temperature, precipitation, snowfall or fog, although temperature remains the most frequently encountered underlying.
It is difficult to put a figure on the actual size of the weather derivatives market (created in 1996). After starting out in the energy sector, other economic sectors, such as tourism and agriculture, are beginning to see the financial benefits of hedging against the vagaries of the weather. Farmers can use weather derivatives to protect themselves against crop failure due to drought or cold; theme parks may wish to protect themselves against rainy weekends during the summer season…
These products are technical and rather costly, and it’s quite unrealistic for a company to believe that it can avoid in-depth consideration of its climate risks in this way, all the more so as, in Europe, this consideration is set to become compulsory as a result of the CSRD.
See https://meritis.fr/blog/le s-derives-climatiques-applications-concretes and https://www.forbes.fr/business/les-derives-climatiques-une-solution-pour-les-entreprises-qui-cherchent-a-se-proteger-contre-les-risques-lies-aux-aleas-climatiques/
These measures may concern the climate and the reduction of greenhouse gas (GHG) emissions, the use of water, forests and natural areas, as well as chemical pollution, the extraction of resources (mining), and so on.
We focus here on market solutions applied to the case of GHG emissions, discussing their justification, their limitations, and the alternatives as advocated in the wake of Elinor Ostrom’s work. But first, let’s take a look at the debate among economists between carbon taxes and quotas, both of which are based on the idea that they fill a market failure.
Carbon tax or allowance market?
Arthur Pigou is responsible for 135 the idea that a tax can remedy the “market failure” mentioned above. The introduction of a tax encourages the polluter to reduce the pollution for which he is responsible, even though he does not do so spontaneously. If he fails to do so, the tax “sanctions” the pollution, in accordance with the polluter-pays principle. 136 The money collected can be used to finance public action to reduce pollution.
In terms of climate change, the carbon tax is the application of this principle. Its impact on reducing emissions can be assessed by evaluating the elasticity of consumption of products subject to the tax, in relation to its amount.
We owe to Ronald Coase and John Dale, the theoretical idea, both bolder and more debatable 137 to correct allocations of rights when they are inadequate (and, in particular, do not allow for the creation of a market). In other words, for Coase, if the initial allocation of a right (to pollute within a certain limit, for example) is not “efficient”, then the creation of an exchange system (a market, in other words) will correct the situation.
How does an emissions trading scheme work?
It was in the Kyoto Protocol (negotiated in 1997 and ratified in 2005) that it was decided to set up a system ofCO2 quotas. This idea was put forward by the American delegation, drawing on its successful experience with SO2 quotas. 138 Ironically, the Americans did not ratify the agreement, and the Europeans, who were initially more in favor of a tax system, were the first to set up a quota market. Launched in 2005, theEmissions Trading System (ETS) creates emission rights and makes them tradable on a market – in this case, accessible to obligated parties (CO2-emitting companies subject to the system) and financial players, thus enabling the emergence of financial derivatives.
A quota market consists of allocating an annual emissions ceiling to an industrial site, creating tradableCO2 quotas, and forcing industrialists to buy quotas if they exceed the emissions ceiling, knowing that they can sell quotas in the opposite case. By matching needs and surpluses on the market, an allowance price is set. Find out more aboutCO2 allowance markets in our Neutrality and carbon offsetting factsheet.
The first advantage, for the designers of this system, is that the amount allocated makes it possible to control authorized emissions; something that a tax, whose effect on the quantities of pollution emitted is uncertain, cannot do. Two other arguments are put forward by the promoters of this market: it is not a budgetary or fiscal instrument, which means that the corresponding sums are not subject to budgetary and fiscal logic. They decentralize the trade-offs to be made to the “obligated parties”, according to their knowledge of their constraints and possibilities, which is, in their view, more efficient than any centralized solution.
The European Union Emissions Trading Scheme (ETS)
However, the main reason for choosing the ETS within the EU is institutional: member states are sovereign when it comes to taxation. To be implemented, a European carbon tax requires the unanimous agreement of all members, which is impossible to achieve in practice. All the ETS needed was a directive, which requires only a qualified majority in the European Council (and no blockage in Parliament). As a result, the system within the EU is a hybrid one: the most concentrated emissions are subject to the ETS, and the others to taxes where appropriate, as is the case for France, Sweden, Finland, Denmark, the Netherlands and Slovenia.
This situation could change withETS 2, scheduled for 2027, which provides for a second market in allowances for building and housing emissions.
We won’t go into more detail here about these systems, their evolution or their evaluation, to concentrate on the two-fold controversy that animates economists on these issues.
Carbon credits and the voluntary carbon market: reduce or offset
Alongside quota markets, the use of carbon credits has developed. These are mechanisms whereby private-sector companies finance actions to reduce GHG emissions for which they are not directly or indirectly responsible (i.e., which are not part of their scope 3). 139 ). Carbon credits are the counterpart of such decarbonization actions. These carbon credits can then be traded on a market that is currently voluntary, unregulated and not bound by international regulations. A private player can therefore buy them and thus, in theory, contribute to GHG reduction or sequestration.
Without going into detail here (see our Carbon neutrality and emissions offsetting fact sheet), let’s mention the two main problems posed by carbon credits in a voluntary market.
On the one hand, if these credits are certified by agencies or consultancy firms, they are not always solid proof of effective and sustainable action, as a major survey published in the Guardian revealed. 140 in 2023.
On the other hand, the companies that buy these credits use them, most of the time, to “offset” their own emissions, and consequently do not launch the corresponding emissions reduction actions, which must nevertheless be carried out with a view to achieving zero net emissions in the long term: in fact, the available sinks are far from sufficient to neutralize current emissions. We therefore need to act on both fronts.
The argument put forward by economists is that it would be desirable, in terms of economic efficiency, to carry out the least costly operations (those that generate credits). This argument only holds if the “offset” emissions were the subject of work (including research) aimed at reducing them, but this is not the case as long as it is possible to buy inexpensive credits. In a way, they disappear off the radar.
As long as carbon credit market mechanisms make it cheaper to “compensate” elsewhere than to reduce our own emissions, the necessary in-depth transformation of the economy will not take place.
Carbon credit markets are a perfect illustration of how belief in markets as an absolute solution can have harmful consequences for society.
Market mechanisms and biodiversity
Biobanks
In the United States, a number of financial players began looking into the subject in the 1980s. It was at this time that “biobanks” were born. 141 private institutions, financial or insurance companies, which assign a cost to the various components of Nature (an endangered species, a natural area, etc.) and sell securities or “biodiversity certificates” to companies for “building permits”. In practical terms, biobanks acquire land on which endangered species live, and sell securities to companies to finance the purchase of the land. Companies thus have the satisfaction of having acted to safeguard biodiversity (and the possibility of communicating their “good deed”), while continuing to build sites that are more or less polluting.
In principle, this operation satisfies the interests of the companies, the biobanks and Nature itself. Indeed, by purchasing securities from biobanks, companies obtain “certificates of good conduct” which are valued by their customers and investors in general; biobanks, for their part, will become richer, and an endangered species will theoretically be protected.
For example, the Malua Bank biobank, set up in 2008, purchased 34,000 hectares of Sabah forest (Borneo, Malaysia), home to endangered orangutans, for 34 million euros. The biobank sells “orangutan certificates” to palm oil extraction companies so that they can be exempted from suspending their destructive activities. However, palm oil has provoked a real outcry from animal and environmental activists.
Biodiversity certificates
Let’s recall the context. As the IPBES reports remind us 142 reports, urgent action is needed to reverse the decline in biodiversity. The Global Framework to halt the loss of biodiversity is the outcome of COP15 Biodiversity in Kunming-Montreal, which took place in 2022. It sets global objectives for this action, including the mobilization of the necessary public and private funding. This is the content of target 19, which calls for “a significant and progressive increase in financial resources […] including private resources”. It explicitly mentions the promotion of “innovative systems”, including “biodiversity credits”. The President of the European Commission gave a boost in September 2024 143 for the introduction of “nature credits” along the lines of the carbon quota market.
These certificates aim to guarantee the integrity and non-additionality of a biodiversity restoration action. 144 The underlying idea is that they can serve as a basis for private funding from a player seeking to contribute to this fight against biodiversity loss, and then for a trading market.
The problems revealed by the voluntary carbon certificate markets will be repeated here. It is therefore imperative that lessons be learned. In particular, it is essential that such markets for biodiversity be regulated and not voluntary. But, in addition, biodiversity certification is more difficult for several reasons. 144 Here are the two main ones.
- There is no universally recognized metric for biodiversity.
- In the case of carbon, the concrete issues at stake have a much stronger territorial and local dimension.
The limits of price signals
The first controversy about relying on markets to preserve the environment – whether climate or biodiversity – concerns the effectiveness of the price signal alone (whether from quotas or a tax). Jean Tirole “Nobel Prize 146 in economics recommends, “like the vast majority of economists”, a market-based solution, i.e. “making all countries, all economic sectors and all players pay the same price for carbon emissions”. 147
This idea is dominant, in the sense that it is supported by Europe’s most respected economists, such as Jean Tirole and Christian Gollier. We mentioned its basic logic above. The reasoning of these economists is more profound: they consider the market to be the only efficient institutional organization, since it is based on the interests of players whose confrontation, in their view, leads to optimal efficiency, except in the case of market failure. As the case of GHG emissions is recognized as constituting such a failure, they propose correction by a price signal, and consider it necessary and sufficient. They consider that any other public intervention (through subsidies, regulations or other means) is necessarily more costly (even if these costs are hidden) and basically superfluous.
Other economists draw attention to the limitations of price signals. Firstly, on an empirical level, the following shortcomings can be observed:
- The price signal level is very difficult to calibrate correctly.148
- The resulting price increases are ultimately passed on to consumers, making citizens hostile to this type of taxation. In other words, the role of the state is seen more as a protector against market failures/excesses (in the event of rising energy prices, for example, the state is called upon to limit them, and in this case is seen as legitimate) than as an incentive. Tax incentives are seen as just another tax, the use of which eludes citizens, who see only its weight. This is the experience of the Gilets Jaunes in France.
- Estimates of the price level that would need to be put in place in order, on its own (without other public policies), to curb emissions in line with the trajectories of the Paris Agreement, are very high compared to the current level (e.g. 256 euros per tonne 149 in France in 2030, the current level being 45 euros and having been enough to trigger the Gilets Jaunes movement).
- This price level cannot be independent of the price of the “underlying” (in this case, for the carbon tax, the price of energy), as consumers are sensitive to the price inclusive of tax and not to the price of carbon, which is only part of it. The idea of elastic taxation 150 has been put on the table, improving on the “floating TIPP”, tested then abandoned in 2000-2002. But this suggestion strays far from the “purity” of the economic reasoning behind taxation.
- People can’t instantly change the way they “work”, especially if this requires investment (in vehicles, heating, etc.), and even more so if they don’t see any alternatives (e.g. public transport).
- In practice, the arsenal of public measures is much more comprehensive (information, training, regulations, standards, public spending, subsidies, etc.).
An exclusively market-based approach will not decarbonize the economy
For orthodox economist Jean Tirole, it’s true that “political scientist Elinor Ostrom, winner of the 2009 Nobel Prize in Economics, has shown how small, stable communities are able, under certain conditions, to manage their local common resources without falling victim to this tragedy, thanks to informal incentive and sanction mechanisms”. 151 But “these informal approaches to limiting the free rider problem are obviously not applicable to climate change, because in this case the stakeholders are the 7 billion people currently inhabiting the planet as well as their future descendants.” 152 As mentioned above, he recommends a market-based solution.
In contrast, Elinor Ostrom has put forward proposals for managing the commons based on lessons learned. 153 She puts forward a polycentric approach in which several commons, from the local to the global, would be interconnected. This approach would take advantage of the co-benefits of the fight against greenhouse gas emissions (improved air quality) and the potential complementarities between adaptation (locally essential) and mitigation (to global effects). Exchanges of experience and the resulting changes in social norms will help to boost confidence and limit opportunistic behavior. This approach is as different from the unrealistic market/price approach (seeMisconception 5 on the privatization of Nature) as it is from an authoritarian state approach. For Elinor Ostrom, “the problem of collective action does not disappear if it is a government that deals with an externality. Even a government must be able to rely on the willingness of its citizens to cooperate”. 154 The relevance of this proposition should not be dismissed out of hand. The success or failure of the ecological transition, whether in terms of adaptation or mitigation, will largely be determined at local level.
Find out more
- Arthur Pigou, The Economics of Welfare, 1920
- Alain Supiot, Homo juridicus. Essay on the anthropological function of law, Points, 2009
- Elinor Ostrom, A polycentric approach for coping with climate change, World Bank, 2009
- Benjamin Coriat, The common good, the climate and the market. Réponse à Jean Tirole, Les Liens qui Libèrent, 2021
- Alain Grandjean and Julien Lefournier, L’illusion de la finance verte, Éditions de l’Atelier, 2021
On carbon markets
- Comment les entreprises polluantes ont transformé les quotas gratuits de CO₂ en un marché de plusieurs milliards d’euros, Guillaume Delacroix, Emmanuelle Picaud et Luc Martinon, Le Monde (30/05/2023)
- Video: John Oliver – Carbon offsets (22/08/2022)
- Christian Gollier, Le climat après la fin du mois (Alpha, 2019), which shows that economists of neoclassical culture still make the carbon price-signal the central measure for combating climate change.
On biodiversity
The special case of the European market
Since the Second World War, Europe has gradually created institutions and rules to build a vast integrated market. This project is based on the theoretical idea of market efficiency, but also, after the Second World War, on Montesquieu’s idea of “doux commerce”. 155 This approach, impacted by major events such as the fall of the Berlin Wall, the wars in Yugoslavia, the rise of China, the 2008 crisis and the war in Ukraine, has evolved over time in response to new economic and political dynamics, while remaining faithful to its common thread. The main milestones of this integration are marked by four major treaties: the ECSC Treaty (1952), the Treaty of Rome (1957), the Single European Act (1986) and the Maastricht Treaty (1992).
Towards the internal market: gradual integration
The creation of the European Coal and Steel Community (ECSC) in 1952 was intended to place the production of these strategic resources under a supranational authority, with the aim of achieving lasting peace between France and Germany. It was therefore first and foremost the expression, on a European scale, of a post-war need for industrial policy, in the broadest sense of the term, corresponding to intervention organized by the State to steer the market towards a production system it deemed preferable, according to politically-defined public utility criteria. 156 After the war, France set up the Commissariat Général au Plan (CGP), an “anti-hasard” planning tool, following the liberal erring ways of the interwar period.
The direction of European integration was to change gradually, however, with the emphasis shifting back to “the power of the market”. The Treaty of Rome (1957) extended the ECSC’s ambitions by creating the Common Market, eliminating customs duties and adopting a common external tariff. This economic integration was deepened in 1986 with the Single European Act, which abolished internal trade barriers. The Cassis de Dijon ruling (1979) 157 and the neoliberal ideas of the 1980s accelerated this movement, culminating in 1992 with the completion of the Internal Market. The parallel with the disappearance of any hint of industrial policy in France is striking: the CGP, gradually falling into disrepair, was further weakened by the oil shocks and this neoliberal turn, and stopped publishing a “Plan” in 1993.
European policies for the creation of the single market
Market opening and competition policy
Since 1962, in Europe 158 competition policy has been aimed at preventing and punishing cartels and abuses of dominant positions. On January 1, 1993, border crossings between EU countries were abolished for the passage of goods. The economic (and ideological) underpinning of the Cecchini report 159 was a diptych. The first pillar was the mutual recognition of norms and standards (a good authorized for sale in one country is also authorized for sale in another), or European harmonization. These norms and standards concern the products themselves (e.g. product safety) or production methods (e.g. respect for the environment). This approach puts European producers in competition with each other, while lowering the cost of access to a larger market enables them to achieve economies of scale. It has been accompanied by a competition policy designed to punish cartels and abuses of dominant positions.
The European Commission has investigative powers and also controls mergers to prevent monopolies. The Directorate-General in charge of this policy (DG COMP) is one of the Commission’s most powerful. These rules have led the Commission to adopt numerous regulations and standards that are politically desirable or supposedly necessary to ensure that competition is “free and undistorted”. 160 The result is an apparent paradox: the birth and development of a liberal bureaucracy. 161
To make up for its lack of information, this bureaucracy has to cooperate with trade associations and representatives of civil society (e.g. environmentalists), although there is no guarantee of equal treatment between the various stakeholders in a complex legislative process involving the European Commission, the Council of Ministers and the European Parliament.
The Maastricht Treaty reinforced European rules designed to promote competition within the EU (see the example of the railways developed in Received Idea 7).
Free movement of goods, services, capital and people
While the liberalization of trade in goods was rapidly facilitated, the liberalization of services was slower due to national reticence, particularly in view of member countries’ attachment to public services, some of which (railways, telecoms, electricity) were about to be opened up to competition. However, changes did take place in the financial, telecommunications and transport sectors. The free movement of capital became total in 1990. 162
Finally, the right to free movement of workers and freedom of establishment, recognized as early as the Treaty of Rome, were strengthened and extended with Maastricht and subsequent treaties. Freedom of movement and residence, extended to all European citizens regardless of their occupation, are enshrined in Article 3 of the Treaty on European Union, and Article 21 of the Treaty on the Functioning of the European Union (TFEU). They are also guaranteed by article 45 of the European Charter of Fundamental Rights.
Sectoral policies: agriculture, industry and cohesion
The Common Agricultural Policy (CAP), introduced in 1962, led to far-reaching restructuring in this sector, promoting productivist agriculture and encouraging farm consolidation. This restructuring was both socially violent and ecologically disastrous. 163 Farm consolidation 164 have destroyed thousands of kilometers of hedgerows, havens of biodiversity, and channeled watercourses, to the detriment of their capacity to regulate excessive rainfall. As for the social impact, the figures speak for themselves: the number of farms in France fell from 2.5 million in 1955 165 to less than 500,000 in 2020.
Structural policies such as the European Social Fund (1958) and the ERDF (1975) aim to reduce regional inequalities. The amounts mobilized are not insignificant: for the period 2021-2027, the EU plans to mobilize some 316 billion euros over seven years for economic and social cohesion, i.e. around 45 billion euros per year. 166
Conversely, industry has remained mainly under national control. This is not the result of resistance on the part of governments (as in the case of services liberalization), but of a genuine ideological bias. After an immediate post-war period of national control of the industrial apparatus, priority was increasingly given to competition policies for the distribution of products and services, which were supposed to reduce costs for consumers, even if this meant job losses and/or relocation. This reasoning is coupled with Ricardo’s comparative advantage argument: we can’t do everything well, so it’s inevitable that others will do what we do less well. This is the logic of neoliberal reasoning, widely shared by national and European authorities.
Industrial policy, on the other hand, looks at things from the producers’ point of view. It took the crises caused by COVID and the war in Ukraine for national and European industrial policies to become legitimate, even desirable, and for support measures to emerge. At European level, the launch in 2024 of the Regulation for a “net zero” industry aims to make the EU “the epicenter of clean technology production and green jobs”. In France, it’s the France 2030 programs, with calls for tender to support the decarbonization of very large industrial projects. The scale of the challenges involved in decarbonizing the economy, and the failure of policies based on unconditional support for the market and big business, call for a completely different approach, one that is more collective, systemic and long-term. 167
Lack of harmonized tax and social policies
Two other areas, taxation and social affairs, remain largely national. Although progress has been made, particularly in the areas of VAT andtax evasion, differences between member states and a lack of overall determination stand in the way of harmonization. In the social field, modest progress has been made in protecting workers’ rights, such as the directive on posted workers. 168 or the introduction of a European minimum wage in 2022.
As a result, competition between multinationals is distorted by these disparities, and they invert the problem by putting states or regions in competition (when they are powerful enough to do so). The result is a race to the bottom in fiscal and social terms, with deleterious effects, both economically (competition within Europe being stronger than cooperation) and politically, in terms of support for the European project.
The Maastricht Treaty: a new stage
In 1992, the Maastricht Treaty marked a turning point with the introduction of Economic and Monetary Union (EMU). This led to the creation of the euro, governed by convergence criteria. 169 This treaty also strengthened the free movement of capital 170 and develops a framework for an integrated financial market, prefiguring the Capital Markets Union (CMU), still under construction. The Treaty strengthens the liberalization of transport and energy (electricity and gas), with the ultimate aim of creating a single energy market.
At the same time, the creation of the ETS quota market and directives on energy efficiency and renewable energies have led to a reduction in greenhouse gas emissions. 171 thanks to a real shift in the energy mix (with a reduction in the share of fossil fuels and the growth of low-carbon energies).
Challenges and prospects
This long march towards an all-market economy is now coming up against realities that are taking their toll on the European Union. Several promises, notably those set out in the 1989 Delors Report
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paving the way for monetary union, have not been kept. They can be summed up in a few words. The Union was supposed to bring economic growth and jobs, economic stability, economic convergence, reduced social inequalities and European power. It has to be said that, in all these respects, the results are questionable to say the least.
In the 2010s, the EU experienced a major sovereign debt crisis. Inequalities remain high between the “countries of the North” and those of the South and East, where unemployment remains high. While the euro has become a reserve currency, it remains far behind the dollar and continues to suffer from the absence of a coordinated foreign and economic policy. The absence of an industrial policy and the loss of sovereignty on the part of European states have become glaringly apparent, following the COVID crisis and the economic and energy consequences of the war in Ukraine. Admittedly, the Green New Deal is a major initiative of the Van der Leyen Commission (2019) to make the European Union the leader in ecological transition. But this project is currently stumbling over the industrial aspects and the legitimate fears of companies in the face of increasingly aggressive global competition, particularly from the USA and China. In addition, the transition from “convergence criteria” – initially intended to bring the various national economies closer together – to budgetary discipline framed by increasingly complex rules, is weakening the European Union. In 2024, it led to the adoption of pro-cyclical national budgetary policies, whereas the economic situation required the opposite, and the Draghi report
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calls for a major investment program (800 billion per year at European level, i.e. 5% of European GDP, a large part of which would be publicly funded). This report, submitted to the President of the European Commission in September 2024, focuses on three areas to “restore European competitiveness”: innovate and close the technological gap; have a common plan for decarbonization and competitiveness; strengthen security and reduce dependencies.
All in all, recent crises have highlighted the need for more united and resilient policies, particularly in the fields of energy, industry and defense. The geopolitical situation and tensions with China and the USA reinforce this need. Donald Trump’s decision, at the beginning of 2025, to ally himself with Russia, against the European Union, is an electroshock, which we can hope will shake Europeans out of their vision, which is not naïve, but completely ideological and disconnected from the reality of power relations (and their consubstantial links with economic reality).
Capital Markets Union (CMU) and its limits
The European Commission estimates that the EU needs an additional €620 billion each year until 2030 to meet its 2030 climate target. The European Court of Auditors has raised this figure to a further trillion each year.
Substantial investment, from both the public and private sectors, is therefore needed to finance the transition. The Letta reports 174 and Draghi reports assert that the development of a Capital Markets Union (CMU) is a prerequisite for solving the EU’s main financing problems. They point out that a large proportion of European savings are invested in companies located outside European markets. Remobilizing it in Europe is presented as one of the main ways of meeting the financing needs of the fight against climate change.
In short, the UMC could mobilize European savings to finance the investment needs outlined above.
But as it stands, it’s all a figment of the imagination. The majority of green investments are not profitable. 175 They will not spontaneously attract household savings, because the current UMC project does not propose concrete mechanisms for channelling investment into sustainable activities; it focuses on stimulating economic activities, regardless of their environmental impact. Furthermore, the main measures proposed under the UMC involve a relaxation of current prudential standards and supervisory mandates. This regulatory relaxation is proposed without adequately taking into account the growing climate risks, and raises questions about long-term financial stability. In the worst-case scenario, which is not unlikely, UMC would increase climate-related risks by increasing the financing of carbon-intensive activities and simultaneously weakening the prudential safeguards in place to absorb them.
To find out more: See the Reclaim Finance feedback posted on the European Commission’s website on February 12, 2025, on which this box is based.
But to date, the single capital market (UMC) remains the Commission’s flagship project. 176 Admittedly, it is undeniable that European integration is not complete, that banking markets 177 and financial markets remain fragmented. 178 But are these the most pressing and fundamental challenges facing Europe? Is it proven that SMEs and SMIs will be more robust and greener if they rely more on capital markets and less on banking intermediation? And above all, how can we believe – and, above all, make people believe – that this project is the answer to Europe’s challenges?
Faced with the many challenges of the 21st century (climate, biodiversity, inequalities, the decline of democratic ideas…), the response of European leaders cannot be limited to an initiative concerning capital markets and banks.
Preconceived notions
Profit would be the supreme guide or the supreme evil of economic activity
Viewed from a more political and simplifying angle, the “law of the market” is often presented as the “law of profit”. Market advocates see the pursuit of profit as a mechanism for making the economy as efficient as possible. This is Milton Friedman’s famous point of view, according to which business leaders should be content to satisfy the interests of shareholders (in short, to maximize the company’s profit, which serves as the basis for the distribution of dividends and the valuation of the company’s shares, and therefore of shareholders’ wealth). It was expressed very clearly by Adam Smith:
“I have never seen that those who aspired, in their business enterprises, to work for the general good, did many good things. It is true that this beautiful passion is not very common among merchants, and that it would not take long speeches to cure them of it.”
Let’s start by defining “profit
Profit is a company’s earnings. After tax, it is the legal remuneration of shareholders, who can distribute it to themselves in whole or in part, or leave it in reserve within the company. The pursuit of profit is also generally considered to be the driving force behind economic growth. This undoubtedly justifies calling shareholder remuneration “profit”. How else to explain the fact that salaries, purchases and other financial costs are called “expenses” when they should also be called profits (since they benefit these stakeholders and they are considered as such at the macroeconomic level, being components of GDP).
Conversely, the Marxist tradition considers profit to be theft 1 and bosses as exploiters. It sees profit as economic evil.
So it’s worth recalling a few obvious facts here.
Generating profit is essential to business survival
Under the current legal system, a company selling a product or service must eventually generate 2 In order to continue to exist, a company that sells a product or service must eventually generate a positive result (a profit, in other words) or no profit at all each year, in order to be able to finance itself with sufficient cash flow. If it takes out bank loans, it must be able to repay them (which presupposes that it will one day be able to make a profit…). This profit can then be reinvested in the company – in investments that are often necessary for its long-term survival and, if necessary, its development. A company unable to meet its cash flow obligations (supplier or employee payments) must legally “file for bankruptcy”. If it fails to do so, its corporate officer is liable to criminal prosecution.
In the current legal system, “profit” is therefore a condition of sustainable existence, and in any case, of the actor’s autonomy. Millions of small businesses in France are run by “small bosses” who are happy not to be salaried employees, and to exercise their profession autonomously, even if their remuneration is low and, in the event of bankruptcy, they risk personal hardship. In the vast majority of cases, for these bosses, “profit” is not a goal but a means to an end.
Profit is no guarantee of a just society or a healthy environment
Conversely, it is clearly dogmatic and false to consider that the pursuit of profit alone by companies leads to the satisfaction of the general interest. As we saw in the Essentials of this module, the free play of the market (and therefore the pursuit of profit by companies) must be framed to take account of factors that economic agents fail to integrate into their decisions.
In France and other countries, there is a growing trend towards corporate social and environmental responsibility (CSR). This is leading companies to report to their stakeholders on the actions they are taking in this area(with a CSR or Sustainable Development report, possibly integrated into financial reports).
This movement is clearly a step in the right direction, as it stops managers focusing solely on short-term profit. Above all, it has the advantage of creating regulations (such as the duty of care) that oblige companies to integrate the interests of stakeholders into their decision-making.
In the long term, however, it will not be enough, because what still takes precedence today is the profitability of financial capital, which can be achieved at the expense of other capitals (nature and human beings). The best (and only?) way to properly integrate the preservation of this capital into the entrepreneur’s decision-making process is to make accounting standards evolve in such a way as to compel him or her to do so.
The ability of markets to self-regulate, leading to an optimal situation, has been scientifically demonstrated.
Economists have been trying for decades to model how markets work, but this is very difficult: price formation is a complex process, involving many factors (product quality, social power relations, legal and fiscal rules, the relative weight of institutions, competition between producers, manufacturing and marketing costs, margins demanded by shareholders, amortization of necessary investments, etc.). There is no such thing as an “auctioneer”. 3 who formulates price calls. What’s more, there are thousands, if not millions, of different markets.
Today, the “job market” for IT specialists, who are in high demand, bears no relation to that of office workers, who are less so. The market for tulips is not the same as the market for chrysanthemums etc., nor are they the same depending on their location. What’s more, markets interpenetrate and change perimeter according to technological innovations; the interactions between different markets are frighteningly complex. Finally, economics is not separate from other fields (political, strategic, psychological, legal, etc.). To take just one example among a thousand, it is impossible to understand the evolution of oil without taking into account American policy in the Middle East.
From the “invisible hand” of the market to the theory of general equilibrium: the evolution of classical and neoclassical theories
Adam Smith was the first economist to attempt to make economics an independent discipline (notably from religious and moral issues). He also sought to find economic “laws” – in the image of Newtonian physics, which had just triumphed – and produced both a theory of value (the value of a good is the labor required to produce it), and an initial justification of the market and competition. In his wake, “classical” and then neoclassical economists sought to solidify his vision of the market (the famous invisible hand, even if this term, which suggests that the market is all-powerful and has something magical about it, has been abused). 4 Alfred Marshall one of the founding fathers of neoclassical economics, formulated the law of supply and demand, settling a debate that animated economists of the time: are prices set by producers (Ricardo) or by consumers (Jevons)? Price,” replied Marshall, “is the result of the law of supply and demand. In a given market, the supply of products increases with price, while demand decreases. The two curves intersect at the market price.
The market price is no longer the result of a balance of power, but the result of a law; it becomes the “right” price, the value of things. Farewell to the labor theory of value, welcome to a new theory of value . 5
Léon Walras, another co-founder of neoclassical economics, was the first to attempt to represent an economy mathematically, aiming to show (but failing) that a set of competitive markets, where products are exchanged, can reach an “equilibrium” (supply of each product (for that price) equals demand (for that same price). Gérard Debreu, winner of the Nobel Prize in Economics, is credited with this theory. 6 to have rigorously formalized the general equilibrium theory of Léon Walras, in an article published in 1959, with the revealing title: La Théorie de la valeur, une analyse axiomatique de l’équilibre économique (The Theory of Value, an axiomatic analysis of economic equilibrium). 7 It is often wrongly claimed that he demonstrates the existence of this equilibrium.
Behind the equations, an ideological vision: limiting government intervention in the markets
Before going any further and showing that this is false (or simplistic, to say the least, since this result depends on all the assumptions made explicitly or implicitly in the mathematical model), it’s important to understand the concrete issues at stake in this academic work. Classical and neoclassical economists are convinced that markets are self-regulating: an imbalance (e.g. a recession, a high bankruptcy rate, high unemployment) could only be temporary and would “naturally” resolve itself, barring clumsy intervention by public authorities. This doctrine pushes public authorities to limit their intervention in the economic field, and to extend the domain accessible to the market (in fields such as digital or healthcare, and via asset privatizations).
German ordo-liberalism stems from this way of thinking: in the eyes of its proponents, the State should confine itself to being the guardian of rules (free competition, balanced budgets, independence of the Central Bank) and should not react during an economic recession (and especially not through increased public spending that could lead to a budget deficit). Another example: it was this belief in the self-regulating virtues of the market that led Hoover not to react quickly during the 1929 crisis.
Neoclassical economists base this belief on mathematical demonstrations which, however, do not demonstrate this property at all. We limit ourselves here to a brief analysis of this central topic, and refer to the critical literature. 8 which delve deeper into this subject.
The 4 main limitations of general equilibrium theory
Gérard Debreu formalized an economic world in a very abstract way and, within this formal framework, he demonstrated (in collaboration with Kenneth Arrow and Lionel MacKenzie) the existence of a general equilibrium, something that Léon Walras had failed to do. This demonstration (made in the mid-1950s) was considered a decisive theoretical breakthrough. However, it posed four major problems.
This model’s representation of the economy has no connection with real economic life.
All you have to do is read Debreu’s book La théorie de la valeur (1959) to see for yourself; it’s all about (not very sophisticated) mathematics. 9 but still…); economic realities are clearly not the author’s main concern. This attitude is common among theoretical economists, who use abstract concepts to make mathematical calculations. However, this does not justify such a distance from real phenomena and, more importantly, invalidates the application of theoretical results to economic realities. On this subject, see our The proper use of mathematics in economics .
Assumptions made implicitly or explicitly are not borne out in reality
Before we even talk about verification, it’s useful to know what the assumptions in question are. To quote Bernard Guerrien 10 : “Under these conditions, one might think that the main hypotheses of this model – whose mathematical nature requires precise formulations – are the object of a unanimous and unambiguous presentation on the part of those who use or refer to it. But this is not the case. Just take a look at what Wikipedia – which is supposed to represent the position of the profession as a whole – has to say about it. While the French entry, “concurrence pure et parfaite” (a long-winded name, a French “originality”, alas!), contains 5 conditions – “atomicity”, “homogeneity”, “fluidity” (the “pure” component), “free circulation of factors”, “transparency of information” (the “perfect” component)-, the English version, “perfect competition”, contains twice as many, 5 of which resemble (but are not identical to) the previous ones, the other 5 – “zero transaction costs”, “no increasing returns”, “property rights”, “no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities”, “”no externalities” and “”no externalities”). agent rationality ” – having absolutely nothing to do with them”. 11 12
We’ll come back to some of these hypotheses in a moment. But we can add one more assumption to this double list. The Arrow-Debreu model applies when goods are precisely described, and the place and date of delivery are also specified (a baguette from one baker is not identical to a baguette from another baker…).
Only then does he arrive at a complete price system – necessary for his demonstration – for contracts of the following type: “One tonne of graded bonnotte potatoes, delivered to Geneva on June 5, if it has rained less than 85 cm in Valais since October 1.” Clearly, the vast majority of markets are not complete, and economic agents are incapable of taking into account so much information.
This incompleteness is clearly identified by the market’s defenders, who deduce that it is essential to complete the market, and use this as a justification for the limitless invention of finance (and derivatives), whose social function is precisely to bring about this completeness.
Free and undistorted competition (or pure and perfect competition)
The theoretical ideal of neoclassical economists and competition policy is that of “pure and perfect” competition, also known as “free and undistorted” competition.
In this situation, companies produce and sell goods and services according to their own capacity (i.e., without any agreements with competitors, and without benefiting from any rents that would protect them from competitors). They have no control over market prices, which result from the confrontation of multiple offers and demands.
While this situation does not in fact arise in the generalized way that general equilibrium theory assumes, it does correspond to certain cases, which show that it has advantages. In the village market, consumers are quite happy for prices to be limited by competition, and are looking for the best value for money.
On a stock market, permanent exchanges are also in line with this representation.
In addition, the disadvantages of economic concentrations (see Essentiel 3.2) are
well identified: high prices, excessive economic, financial and political power, and a brake on innovation (by new entrants).
On the other hand, what isn’t said enough is that in industries with increasing returns, the free play of competition leads to concentration (and not to a competitive equilibrium with multiple players).
The criticism levelled at the hypothesis of pure and perfect competition in the general theory is therefore not moral but theoretical: it’s a hypothesis that doesn’t conform at all to observable realities. The same is true of the diminishing returns hypothesis. Verification of these two hypotheses (among others) is essential to conclude that a general equilibrium exists and that it is “optimal”. As they are not empirically verified, we can deduce that the conclusion is not either.
Balance exists in theory, but how to achieve it remains a mystery.
From the early 1970s onwards, it became clear that it was not possible, in the context of this theory, to explain how an economy, initially out of equilibrium, could converge, through a series of out-of-equilibrium exchanges, towards an equilibrium. In other words, it was possible to demonstrate the existence of an equilibrium in a wide range of situations, but not to explain how an economy could achieve it within a framework of free, decentralized trade. In 1974, Debreu, Mantel and Sonnenschein (see box) invalidated the process proposed by Léon Walras to describe the convergence of supply and demand towards a price, showing that it was by no means guaranteed and that it was not demonstrable that there was a single price.
Sonnenschein’s theorem
The shape of supply and demand functions are essential elements of both producer and consumer theory. In a partial equilibrium framework, it is possible to deduce from maximizing behavior alone, and from assumptions about the utility function or the production function, conditions about the shape of supply and demand functions, such as the fact that demand is a decreasing function of price for a normal good.
Sonnenschein’s theorem shows that such properties do not extend to aggregate net demand functions (the difference between demand and supply) resulting from the addition of individual supply and demand in the Arrow-Debreu model.
In other words, aggregate net demand can take any form within this framework. This does not call into question the existence of equilibrium, but rather its uniqueness and the stability of the trial and error that is supposed to lead to it.
Curiously enough, the Arrow-Debreu theorem does not attempt to represent how prices are formed on a market.
The assumption (of atomicity) that agents are “pricetakers ” is central to the model of pure and perfect competition. Agents don’t propose prices – they “take” them, wherever they come from. The price taker hypothesis is often presented as valid in the case of very “small” agents, whose individual offers and demands “drown in the mass”. But this leaves open the central question of who sets the prices. Whether agents are few in number or not, someone has to do it. The mystery remains.
Despite its limitations, general equilibrium theory influences global economic policies
The theory of general equilibrium is therefore by no means proven. However, many mathematical models, and the most influential institutions such as the IMF, the World Bank and the ECB, still use general equilibrium models. 13 Admittedly, efforts have been made since the 2008 crisis, which could not have been predicted by these models, to improve them. But it is clearly desirable, and has been for a long time, to start from entirely new foundations (see the Chroniques de l’Anthropocène post). 14 Nature at the heart of economic reasoning ), as economists Gaël Giraud and Antoine Godin are attempting with the GEMMES model. 15
Find out more
- Steve Keen, L’Imposture économique, Éditions de l’atelier, 2014
- Gérard Debreu Theory of Value. An Axiomatic Analysis of Economic Equilibrium, Wiley, 1959
- French translation of “Theory of Value”, Dunod, 1984
- Nature at the heart of economic reasoning, Alain Grandjean’s blog post on the IMF report Embedded in Nature (2024)
- IMF report Embedded in Nature (2024)
- Our GDP, growth and planetary limits module
- Our Global warming: what impact on growth?
On climate models
Market economy and democracy go hand in hand
The emergence of industrial capitalism in Great Britain in the 18th century correlates with that of Western democracy. Moreover, until 2000, almost all developed countries were democratic. Finally, until 1991, the main political and economic alternative to capitalism was communism. These three major facts led many observers to consider the market economy and democracy to be consubstantial.
Other, more theoretical arguments can also be put forward. The protection of private property (including intellectual property) and freedom of enterprise and exchange are essential to capitalism (the contemporary form of the market economy). In theory, democracy is based on plurality of opinion and citizen participation. Symmetrically, in a market economy, economic decisions are taken by a multitude of players (companies, consumers, investors) rather than by a centralized state. This rejection of centralized power encourages interaction between the two systems. This is also true of the need for clear, stable rules, necessary for democracies and market economies.
However, the facts have shown that this link between capitalism and democracy is not a solid one. China combines state capitalism with a totalitarian regime. Nazi Germany was a capitalist dictatorship. 16 So was Chile under Pinochet. Let’s not forget Friedrich Hayek’s famous phrase:
I’m totally opposed to dictatorships as long-term institutions. But a dictatorship can be a necessary system for a period of transition. […] Personally, I prefer a liberal dictator to a democratic government devoid of liberalism.
Hungary, too, embodies authoritarian national capitalism (“Naca” seeEssential 5.6 on anarcho-capitalism). As for American libertarians, whose de facto leader is Donald Trump, President of the United States, they are openly opposed to democracy and in favor of a market economy, without a state.
Conversely, some democracies, such as the Nordic countries with their “social capitalism” models, or Austria, practice significant state intervention in the economy, which strongly regulates the market.
Many economists, chronologically first among them the historian and economist Karl Polanyi 17 consider that the fascisms of the 1930s stemmed from liberalism and, more generally, that neoliberalism bears the seeds of the end of democracy. 18 Karl Polanyi’s main argument is as follows 19 liberal economic policies aim to transform labor, money and land as much as possible 20 into marketable resources. This process of commodification “disengages 21 the economic from the social, reducing social spaces, giving rise to a permanent feeling of insecurity and fragility, and leading to the downgrading of part of the population, who lose the meaning of their work. This lack of a compass and the deleterious effects of generalized competition are weakening the pillars of society. 22 and fuel totalitarianism.
In short, while democracy can hardly do without the market economy (but can regulate it strongly), capitalism, on the contrary, seems to be able to get along just fine without democracy.
But the story isn’t over yet, warns anthropologist Peter Turchin in his book The coming chaos. Elites, counter-elites and the road to political disintegration (Le Cherche-Midi, 2025). His analysis of 700 political and social collapses throughout history shows that the primary factor in collapse is the “wealth pump” (from the bottom up), which produces an overproduction of elites. 23 at the expense of the middle and lower classes. Non-democratic economic regimes are unlikely to stand the test of time. But in the meantime, they are growing, and in the short term are threatening the quality of life, if not the lives, of hundreds of millions of people.
Find out more
Financial markets are efficient
In 1970, Eugène Fama coined the term “market efficiency”. 24 ( efficient market hypothesis, EMH) and “demonstrated” that financial markets are efficient.
This theory, whose limitations are discussed in greater detail in our module Role and limits of finance is now widely accepted. It underpins the prevailing approach in political and economic circles, which is to limit government intervention to the publication of information. Indeed, according to the proponents of this theory, if the right information is known to the financial markets, as they function efficiently, they will play their role correctly. 25 It is for this reason that the approach developed by the European Commission in its work on sustainable finance 26 is limited to information and reporting issues .
The notion of efficiency is poorly defined
This may seem strange for a theory based on a mathematical model and awarded the Nobel Prize. 6 but Fama’s term “efficiency” is ambiguous. 28 Three notions can be distinguished:
- Allocative “efficiency
As Fama writes: “The very first role of the capital market is to allocate ownership of the economy’s capital stock. In general terms, the ideal is a market in which prices provide appropriate (“accurate” ) signals for the allocation of resources.”
This is the central property that non-specialists “expect” from a market: it allocates capital and labor to projects and companies; it should do so in the best possible way (without waste).
- Information efficiency
In this acceptance of the term efficiency, financial markets correctly inform players about the value of companies: “prices are correct”. Note that there is still an enormous gap to be bridged between this assertion, assuming it is correct, and the demonstration that markets would allocate capital correctly for the economy to be “efficient” (in the Pareto sense?), and a final step would have to be taken to show that this is sufficient, since an economy cannot be reduced to its financial markets, especially as many sources of financing do not circulate in them.
- arbitrage efficiency
This is what Fama put it in 1991: a market is efficient (informationally) if profitable forecasting is impossible for market players: “You don’t get something for nothing”. In practice, financial institutions pay “arbitrageurs”, who carry out technical operations (e.g. buying and selling currencies on different platforms), designed to ensure a positive or zero gain for certain, by taking advantage of temporary price differences between different securities or contracts. In effect, their action helps to smooth out “market distortions”. The better these professionals work, the fewer opportunities there are for risk-free gains for other players – the so-called absence of arbitrage opportunities.
Eugène Fama, in his 1970 reference text 29 uses a fourth definition of efficiency: “A market in which prices always reflect available information ‘perfectly’ is said to be ‘efficient’. This enabled him to carry out statistical tests, which led to an abundant stream of publications 30 and debates.
Robert Shiller, already quoted, from the current of behavioral economics 31 winner of the Nobel Prize 6 at the same time as Eugene Fama, demonstrates the inefficiency of markets, notably through the observation of their volatility and sometimes exuberant behavior. 33
Whatever the outcome of this academic debate, it contributes nothing to the central economic debate, which concerns the first meaning of the term “efficiency”. Eugene Fama has pulled off a coup de force, denounced and meticulously dismantled by Nicolas Bouleau 34 who writes:
“The theory of efficient markets is not false or approximate, it is a failure. It fails to answer the question posed and casts a haze over the subject that blurs the intelligence of the problems.”
Eugène Fama has succeeded in making people believe that markets are an efficient way of allocating capital, whereas his theory has nothing to do with this central political issue.
Beyond the question of definition, other criticisms of the efficiency thesis include
We are not “rational” homo economicus
Eugène Fama’s model is based on an assumption of “rational” behavior on the part of economic agents, which has been challenged by the work of behavioral economists (and, more generally, by most of the work in social psychology). It’s also interesting to note that Robert Shiller, who is close to this school, won the 2013 Nobel Prize in Economics with Eugène Fama, precisely by challenging this work thanks to the use of statistical tools by Lars Peter Hansen (the third Nobel Prize winner).
The efficiency of financial markets is contradicted by empirical data
Benoît Mandelbrot (mathematician, inventor of fractals) and, following him, Christian Walter (actuary and finance professor) have shown, based on the analysis of empirical data, that the assumption (used in Eugene Fama’s modeling, but above all in most financial calculations) that movements on financial markets obey so-called “normal or Gaussian” probability laws (in other words, follow a Brownian motion 35 ) is simply not true. 36 This is one of the reasons why financial crises occur more often and on a greater scale than predicted by efficiency theories.
Left to their own devices, markets are not at the service of the economy or the general interest.
If the question of whether you can “beat the markets” is the right one, then you’re right. 37 is still debatable, you don’t need to read these technical works to see that financial markets don’t always give the right prices (and the bursting of speculative bubbles is proof of this). More seriously, they do not allocate capital to the most socially useful operations, and are not capable, on their own, of providing a stable framework for the economy to function properly.
This has been demonstrated by the scale and repetition of financial crises since the markets were freed up, opened up and deregulated (the “top start” having been given by Richard Nixon, who opened the ball by unpegging the dollar from gold and opening the door to floating exchange rates, desired by liberals, led by Milton Friedman).
It’s easy to understand why the consequences and failure of “real communism” have removed any desire to return to a system where prices would be determined by a central authority. That market mechanisms are needed for a whole range of goods seems a given. But to believe in the infallibility of these mechanisms is precisely to fall into dogma. Markets, including financial markets, have their shortcomings, which are increasingly well documented both in practice and in theory.
Find out more
- Alain Grandjean and Julien Lefournier, L’illusion de la finance verte, Éditions de l’Atelier, 2021
- Robert Shiller, Irrational Exuberance, Valor, 2020
- Nicolas Bouleau, Critique de l’efficience des marchés financiers (blog 28/05/2013)
- Gaël Giraud: Illusion financière, Éditions de l’atelier, 2014
- Benoît Mandelbrot, Richard L. Hudson, A Fractal Approach to Markets, Odile Jacob, 2009
- Books by Christian Walter, Le virus B, crise financière et mathématique, with Michel de Pracontal, Seuil, 2009
Privatizing nature would be the right solution to the “tragedy of the commons”.
The expression “tragedy of the commons” is due to Garrett Hardin 38 who uses the example of communal land where herders are free to graze their sheep and, as a result, overexploit it to the point of exhaustion. Why do they do this? Quite simply because it is in everyone’s interest to graze as many sheep as possible; as soon as the carrying capacity of the communal land is exceeded, it is overgrazed and destroyed, which is obviously contrary to everyone’s interests. This tragedy was experienced in real life by the cod fishermen in Newfoundland . The cod disappeared at a time when fishermen were living off this resource and had no interest whatsoever in its disappearance, which had been anticipated by scientists.
This is still the case today in the fishing industry, particularly in intercontinental waters, where fishermen all have an interest in maximizing their catch, without taking into account the fishing activities of other fishermen, or the collective limits that need to be respected to avoid over-fishing contrary to the interests of fish, ecosystems and… fishermen. The same is true of the climate: none of us has any interest in limiting our greenhouse gas emissions, which far exceed nature’s capacity to absorb them, leading to potentially devastating climate change for most of us.
Garret Hardin questions the collective nature of property; his solution is to privatize the common, as was historically done in England during the enclosure movement. The enclosure movement refers to the changes which, from the 12th to the 17th century, transformed the rules of land use and law in certain regions of England. These rules formed a system of cooperative and communal administration of land belonging to a local lord. The Enclosures Acts, passed by Parliament from the early 17th century onwards, marked the end of the communal use rights on which many peasants depended, and led to the privatization of land. The benefits for the “capitalists” of the time were twofold. On the one hand, they became owners of the land they needed to raise sheep, the source of the burgeoning textile industry. On the other hand, they were able to benefit from an abundant and undemanding workforce, as the loss of land-use rights starved the population.
As we explained in Essentiel 4, Elinor Ostrom’s work has shown that, throughout the history of managing the commons, multiple “arrangements” have been invented, avoiding the aforementioned tragedy, and that, on a theoretical level, Hardin’s error is to put on the question of ownership what should be put on the question of access. A commons is defined by the fact that access to it is free a priori. The arrangements analyzed by Ostrom are precisely those that codify access and enforce limitations.
It is therefore neither necessary, nor necessarily effective, to privatize the commons; the priority is to organize limits to access. This is what scallop fishermen do in the Bay of Saint-Brieuc, for example. 39
Contrary to Hardin’s recommendations, the commons cannot be managed by a competitive market that does not, by construction, incorporate the value of these commons. Nor, necessarily, can the state.
We need to invent suitable institutional arrangements. It is to Elinor Ostrom’s great credit that she has analyzed such arrangements in detail in many different cases, and has derived some general rules from them.
Private service is always more efficient than public service: the example of the medical sector
“Agoratheism 40 leads us to believe that efficiency always lies with the private sector. This is obviously false, as is the opposite point of view, which would unreservedly defend the public service and its management on the grounds of economic efficiency.
The case of the medical field is particularly telling. Before going any further, we should point out that the overall evaluation of a healthcare system (which is not the subject of this module) involves a number of parameters: the quality of care (both physiological and relational), access to care (particularly for the most disadvantaged), its control and regulation, the patient’s freedom of choice, innovation and research and, finally, its cost.
Cost, coverage, unequal access…
In the 2019 edition of its Panorama de la santé report 41 the OECD shows that public systems (such as those in France, Germany and the UK) offer better access to basic healthcare, while the USA, where coverage is predominantly private, has some of the highest healthcare costs. 42 with no significant improvement in health outcomes for all socio-economic groups.
Another study comparing the United States (predominantly private) and Canada (predominantly public), published in the New England Journal of Medicine in 2003 43 -that is, before the introduction ofObamacare-showed that the Canadian public system was more cost-efficient and offered better coverage of the population, although the American system had advantages in terms of rapid access to certain medical specialties. Researchers have studied the differences in efficiency, showing that the cost of administration is higher in the U.S., due to the fragmentation of private insurers, while Canada has lower administrative costs thanks to its unified public system. A study published in the Journal of the American Medical Association (JAMA) in 2018 44 analyzed healthcare spending and outcomes in several European countries. It concluded that publicly-funded systems, such as those in the Nordic countries, were more cost-effective overall and offered greater equality of access, while privately-funded systems tended to favor those with better financial capabilities. An article published in the Lancet 45 shows, on the basis of available studies on the subject, that the overall increase in privatization often corresponds to a deterioration in patients’ state of health.
In Brazil, the SUS(Sistema Único de Saúde) provides public health care, while private clinics are often reserved for the middle and upper classes. In India, the healthcare system is largely private. Health care is unaffordable for a large proportion of the population. This pushes many Indians towards unlicensed and untrained providers, endangering their health and exposing them to abusive medical practices. 46 Analysis 47 published in the journal of Proparco (a subsidiary of the French development aid agency, AFD) highlights that, in low-income countries, private services are generally more expensive and do not enhance the quality and efficiency of healthcare services.
In conclusion, it seems that public systems are often better at providing universal coverage and controlling healthcare costs, especially in primary and preventive care. Private systems, on the other hand, can offer greater responsiveness for certain types of specialized care, but at the cost of higher costs and unequal access.
Health: above all a question of social justice
In particular, France is fortunate to benefit from top-quality hospitals that are the envy of the world. It is certainly not appropriate to seek to weaken, or even dismantle 48 to weaken or even dismantle the healthcare system for purely accounting reasons. Maintaining or even improving health, increasing healthy life expectancy – all this generates economic activity and research, and generates income, but also has costs.
The privatization of healthcare services also poses an obvious problem of social justice. In an entirely private system, the poorest cannot afford to pay for healthcare (for themselves and their families) or education for their children. The richest have access to the best quality care and education, which helps perpetuate social inequalities and create immutable social categories. The exact opposite of the French republican model.
Eliminating public services and fragmenting the market would still be economically desirable: the example of the railways
As we know, post-war European integration was based, from the moment the Treaty of Rome was signed, on the creation of a common market– later to become a single market – and, at the same time, on a competition policy aimed in particular at eliminating public monopolies. 49 It was by following these injunctions (which it had validated, as a founding and powerful Member State of the European Union) that France, from 1986 onwards, fully or partially privatized dozens of companies 50 -including companies nationalized during François Mitterrand’s first term in office.
The French state undoubtedly had too much control over too many companies, but the privatizations undertaken in many sectors are not without serious problems: the creation of powerful private groups, able to massively influence the country’s economic and social policy in their own interests; loss of control over certain industrial sectors, which can be considered strategic; weakening of the ability to set a coherent course, or even to make strategic plans, a key aptitude for tackling the ecological challenge.
A brief history of the privatization and opening to competition of France’s railways
We will limit ourselves here to the case of railways, a strategic element in the energy transition.
Let’s start with the history of its liberalization, driven at European level. In 1991, European Directive 91/440 introduced the idea of accounting separation between rail operations and infrastructure management. The underlying idea was that competition in operations (train movements) was desirable (which is debatable), but not in infrastructure (network and stations). In 1997, France created Réseau Ferré de France (RFF), separate from SNCF. RFF becomes the infrastructure manager, and takes over part (20 billion euros) of SNCF’s debt. SNCF retains train operations. From 2001 onwards, the EU produces “railway packages”. The first opened up rail freight transport to competition. France officially authorized other operators on its network from 2006. The second rail package (2004) aims to harmonize technical standards and open up international freight services. Private companies such as Euro Cargo Rail begin to compete with SNCF. The third rail package (2007) opens up international passenger services to competition from 2010 (e.g. Thalys and Eurostar, which subsequently merge). The fourth rail package (2016) finalizes the liberalization of the rail market in Europe, opening up domestic services (regional and long-distance trains) to competition. Liberalization continues in France. In 2018, Emmanuel Macron’s government put an end to the status of railway worker for new SNCF recruits and, in 2020, transformed SNCF into a limited company, with the State remaining, for the time being, its sole shareholder. Since December 2019, companies such as Trenitalia and FlixTrain have been able to offer commercial services on high-speed lines (e.g. Paris-Lyon). For regional services (TER), the regions can award contracts to private operators or continue with SNCF (e.g.: the Sud region has awarded contracts to Thello (a Trenitalia subsidiary) for certain lines in 2021.
The history of the railways shows just how short-sighted this policy has been. The policy was pursued on the grounds of the supposedly necessary “liberalization” of the railways, as political scientist Laurent Kestel explains in detail in his book En marche forcée – Une chronique de la libéralisation des transports : SNCF, coaches Macron, et quelques autres. En marche forcée – Une chronique de la libéralisation des transports : SNCF, cars Macron, et quelques autres (Raisons d’agir, 2018). It has led to :
- reduce the share of rail freight in favour of road freight (from 20% in the 1990s to around 10% in 2024) 51 ), with disastrous social consequences 52 and in terms of CO2 emissions, road congestion and the balance of “road accounts”, as trucks do not pay for the wear and tear on roads to which they contribute.
- increase the market share of coaches and car sharing in long-distance passenger transport.
- reduce maintenance and degrade track quality (the Brétigny rail accident 53 in 2013 being one of the consequences);
- deteriorate service quality and working conditions.
The energy transition today calls for accelerated development of rail freight and piggyback transport, whose C02 emissions per tonne of goods transported are much lower than their road competitors. 54 Liberalization has completely failed in this respect. As for passenger traffic, as we have seen, the trend over the last thirty years has been downward, and rail is also much lower in carbon emissions than other means of medium- and long-distance transport. 55 In both cases, one obvious reason is that the economic competition between modes of transport fails to take account of rail’s advantage in terms of CO2 emissions.
It will be difficult to catch up. It will require huge investments. The stimulus plan 56 envisaged following the Covid crisis, in 2020 and 2021, takes this need into account, but with resources that remain insufficient. Unfortunately, the budgetary restrictions envisaged under European rules since the end of COVID do not give us reason to believe that this issue will evolve seriously in the coming years.
Find out more
- Laurent Kestel, En marche forcée – Une chronique de la libéralisation des transports : SNCF, cars Macron, et quelques autres, Raisons d’agir, 2018
- Un train d’enfer comic strip by Gwenael and Erwan Manac’h, Édition La ville brûle, 2020
- Proposals from the French Rail Freight Alliance for the Future (Fret4F) to revitalize the freight sector
- The work of researcher Aurélien Bigo, expert on mobility and ecological transition issues
- Transport Regulation Authority publications
- After the calamitous privatization of the British railways, the train returns to the public fold, Alternatives Economiques (26/05/25)
Nature should be monetized to save it
Nature’s services
The work of the Millennium Ecosystem Assessment has firmly established the notion of ecosystem services. To quote Wikipedia:“TheMillennium Ecosystem Assessment distinguishes four categories of services:
- Supply services are the tangible products derived from ecosystems, such as food, fuel, materials or medicines for human and veterinary health.
- Regulating services are the intangible benefits provided by the proper functioning of ecosystems, such as climate regulation, the water cycle and pollination;
- Socio-cultural services represent the non-material contributions of biodiversity, obtained through the relationship between Man and Nature. […] These services refer to the aesthetic, spiritual, recreational and educational aspects of nature;
- Support services are those necessary for the production of all other services, ensuring the proper functioning of the biosphere.”
This “services” approach is debatable 57 ethically and philosophically, because it reduces Nature to a producer of economic services that are dissociated 58 It is also a source of wonder, spirituality and even sacredness. This leads to the idea of valuing them monetarily, by analogy with a service rendered by a company, which can be a source of increased social inequality, making what was free pay, and therefore more difficult to access. Some economists are pushing this idea, believing that it is essential to raise awareness of the value of these services, by expressing them monetarily so that they are “respected” and managed with care.
Assessing the value of the services provided (free of charge) by Nature
With this in mind, Pavan Sukhdev 59 produced a report, which is the subject of ongoing work within the Economics of Ecosystems and Biodiversity (TEEB), and whose philosophy is explicit:
“The Economics of Ecosystems and Biodiversity (TEEB) is a global initiative aimed at “making the values of nature visible”. Its main objective is to integrate the values of biodiversity and ecosystem services into decision-making at all levels. It aims to achieve this by following a structured approach to valuation that helps decision-makers recognize the wide range of benefits offered by ecosystems and biodiversity, demonstrate their values in economic terms and, where appropriate, capture these values in the decision-making process.”
The report puts the value of ecosystem services at $23,500 billion. And the erosion of biodiversity is estimated to cost between 1,350 and 3,100 billion euros per year. 60
Monetary valuations can be carried out using numerous methods, which we won’t go into here, limiting ourselves to two examples.
The pollination service was evaluated in a study published in 2008 61 at around $150 billion. An IPBES report 62 in 2016 on pollination puts it this way: “it is estimated that 5 to 8% of current global agricultural production representing an annual market value of $235 to $577 billion (in 2015, US dollars) worldwide, is directly attributable to animal pollination”.
More generally, in 2014, a study published in Nature 63 estimated the value of 17 ecosystem services worldwide at between $125,000 and $145,000 billion (for a global GDP of $60,000 billion).
Why putting a price on the environment and biodiversity is dangerous
However, this approach has no real impact, and is even counterproductive. counterproductive for three reasons.
1. When it comes to their operational decisions, economic players are not very sensitive to rhetoric, even when it comes to figures. Whether the destruction of biodiversity is worth 100 or 1000 in the eyes of a theorist, whether they believe it or not, has no discernible effect on their decisions.
2. Worse still, this value may seem marginal to them. The report on the value of biodiversity in France 64 led by Professor Chevassus-au-Louis, proposes the following values (with many methodological precautions):
“On the basis of previous studies, it appears possible to value temperate zone ecosystem services at levels ranging from a few hundred to €1,000 or even €2,000/ha per year.”
When we bear in mind that “the average price of building land was around 90 euros/m2 in 2019” 65 i.e. 900,000 euros per hectare (i.e. 450 to 900 times the previous figure), we quickly understand that the value of ecosystem services proposed by this report has no effect whatsoever on one of the most important decisions concerning biodiversity, namely artificialisation for building purposes. Real estate developers will therefore use the low value of biodiversity to justify their operations, which will have a very favorable “socio-economic” balance sheet: a lot of value created, for little destroyed…
3. Valuations are questionable. An economic player is generally suspicious of the notion, a little ethereal in his eyes, of value. What he believes in is, like Saint Thomas, what he sees: transactions with prices. The value of biodiversity is not the result of a confrontation between a buyer and a seller; it is the result of “learned” calculations that can vary widely. This further reduces their credibility.
This weakness in the effect of monetizing nature to limit its destruction is very evident in the cost-benefit calculations of the public sector, which has to make “socio-economic assessments” of the projects it launches, particularly in the transport sector. The observation is always the same: the monetization of the time saved by a road, freeway or railroad line (valued at an hourly rate set by official commissions) is generally much higher than the economic loss resulting from the monetization of CO2 emissions or the destruction of biodiversity, with the values currently used.
Unemployment is the result of the rigidities introduced by labour law, which prevent the labour market from functioning optimally.
The theory that a market equilibrates trade at an equilibrium price also applies to the labor market. 66 In this “market”, individuals offer labor and firms demand it (or, put another way, firms offer employment and households demand it). In competitive equilibrium, the price of labor is such that supply equals demand, every worker finds a job and there is no unemployment.
The application of this theory leads us to believe that if there is unemployment (i.e. work offered but not purchased), it’s because the price offered (by the supplier, in this case the worker) is too high, i.e. the market is not functioning “freely”. This may be because there is a minimum price (the minimum wage), or because companies are subject to constraints whose cost to them is higher than the value provided by the labor.
It’s this vision (simplistic and oversimplified here 67 ) that leads neoclassical economists to say that, to eliminate unemployment, we must eliminate the “rigidities” that prevent the equilibrium price from being reached. Hence flexibility policies to reduce unemployment. Thus, for example, the El Khomri law (2016) aims to relax dismissal rules and allow more flexibility at the level of branch and company agreements. The reform of the Labor Code (2017), initiated under the Macron government, also aims to simplify and make labor law more flexible to give companies more flexibility and reduce labor costs.
Several assumptions made in this vision of the “labour market” are clearly unfounded:
- the market in general, and here in particular, does not have the theoretical virtues that are attributed to it; in the case of employment, this is for many reasons (such as questions of competence, geography, etc.).
- workers” are not simply suppliers of work in exchange for payment; they expect work to contribute to giving meaning to their lives, to recognition, to social ties (which can’t be bought), and so on.
- the supply of labor is rationed by mechanization (see our module on Labor and Unemployment); machines are in a sense the first competitors of humans and are not represented in this model.
The economist John Maynard Keynes, aware of the limitations of these models, took a completely different approach to the question of unemployment. In his view, it was not labor market failures that explained unemployment, but the inadequacy of what he called “effective demand”: companies only hire workers if they expect to sell their goods or services. If anticipated demand is low, they cut back on production, even if they could technically produce more. This limits job creation and, necessarily, effective demand, which cannot exceed anticipated demand. And, contrary to classical and neoclassical theories, Keynes considers that wages do not adjust downwards quickly to re-establish equilibrium on the labour market. Finally, when aggregate demand is insufficient, lowering wages is not enough to revive the economy, as it could further reduce consumption… This explanation obviously leads to economic policy recommendations that are very different from a “labor market” approach. We refer you here to the module Labour and unemployment for an overview of this major issue.
Putting a price on carbon would be the best way to combat global warming
The idea of putting a price on carbon stems from simple economic reasoning, first formalized by the English economist Arthur Pigou. If an economic agent incurs no cost for the pollution (a “negative externality”) it generates, it has no “reason” to reduce or even eliminate it. Conversely, if he pays a sufficiently high tax (or a sum via another equivalent mechanism), he will have an interest in acting. He will choose between paying the tax or spending money to reduce pollution.
This reasoning is easy to understand, and the effectiveness of ecological taxes – when they are sufficiently high and designed to take account of their impact on inequalities – has been documented. 68 In the climate field, a study 69 published in August 2024, covering 1,500 policies, showed that those that included a carbon tax were among the most effective. But it also concluded that the most effective ones combined several types of levers.
To understand the benefits of carbon and related taxes, two approaches are generally adopted.
According to the neoclassical approach, private actors are rational markets are efficient – as long as any market failures are corrected. The “environmental” failure is well identified: positive or negative environmental externalities do not spontaneously translate into an economic signal (nature does not charge for the services it provides, nor for the damage it suffers). Correcting the market failure means internalizing these externalities, via a tax or similar mechanism (this could be a market for carbon quota or credit market ).
According to a more institutional approach, as developed here, the behavior of economic agents is not “rational” in the sense of neoclassical theory, even if they are, of course, sensitive to economic signals. Markets, while useful, are not efficient in the sense of this same theory. Finally, the introduction of the carbon tax, because of its strong anti-redistributive effects, is inconceivable without economic support for the most disadvantaged, which can be achieved either through redistribution of the proceeds of the tax 70 or by modifying the tax system (e.g. income tax). It is therefore not possible to use a theoretical approach to demonstrate that the price signal is the only relevant approach.
It is therefore necessary to explore complementary and alternative options to the price signal. It is then clear (and this is what the Haut conseil pour le climat showed in its 2019 report ) that the public authorities have a number of instruments at their disposal in addition to correcting the price signal:
- standards and regulations (including advertising regulations), or even bans ;
- subsidies and support mechanisms (repayable loans, tax credits, feed-in tariffs, etc.);
- information and training ;
- public investment, particularly in infrastructure.
Neoclassical economists generally argue that regulations are less effective than price signals, because they generate a hidden cost, which is therefore not the subject of a transparent trade-off. It’s true, for example, that European standards on CO2 emissions from car exhausts have weighed on carmakers’ costs. But to claim that the alternative of taxing motorists’ petrol or diesel consumption at the right level would be more effective is to ignore a simple reality: the public authorities are not in a position to accept the very high level of taxation that would be necessary to have the same effect, mainly because it would be intolerable for a large proportion of citizens, and sufficient redistribution mechanisms could not, in practice, be put in place on a sufficient scale. The effectiveness of the price signal therefore remains theoretical, and exists only in mathematical models.
High levels of intellectual property protection encourage innovation
Elementary economic reasoning suggests that it is desirable to guarantee an inventor the benefits of his invention. This would encourage innovation, by offering economic protection to inventors and encouraging them to innovate. This economic reasoning consists in considering that an innovation is the private property of its inventor, who should have exclusive rights to exploit it (at least for a certain period of time). This reasoning does not generally apply to scientific or other “knowledge”, which should be accessible to all. In a word, you can’t patent a mathematical theorem. This is why public funding of research, especially “fundamental” research, has developed. We are therefore dealing here with a public/common/private good issue, where the question of possible privatization is debatable and must be the subject of a democratic debate. Before getting into the debate, here’s a brief history of intellectual property (IP) in Europe.
A brief history of intellectual property in Europe
IP takes the form of patents, copyrights, trademarks and other forms of protection for intangible creations. A pioneering law appeared in Venice in 1474 71 which guaranteed inventors the exclusive right to exploit their inventions for a limited period. In England, the Statute of Monopolies of 1624 72 limited the power of monopolies granted by the King, and guaranteed inventors exclusive rights for a period of 14 years. With the industrial revolution, inventors of machines, industrial processes and new products demanded legal certainty to make their investments profitable. Laws were passed in various countries. The Paris Convention for the Protection of Industrial Property was signed in 1883 to harmonize them.
This convention laid the foundations for a broader innovation market, and encouraged economic exchanges between signatory countries. Patents became a strategic tool for European industries wishing to dominate national and international markets, by limiting competition and maximizing the profitability of inventions.
Europe’s economic reconstruction after the Second World War (see Essentiel 8) made IP a vector for competitiveness and economic growth. In 1973, the European Patent Convention was signed, giving rise to the European Patent Office (EPO) and a unified patent. 73 which facilitates access to the single market and strengthens protection against counterfeiting. The economic challenge is also to compete with other countries such as the United States and Japan, which dominate many technological sectors. The EPO facilitates the procedure for European inventors, who can protect their inventions in several countries with a single application. This period saw the rise of IP as a strategic asset for companies, particularly in the chemicals, pharmaceuticals and mechanical engineering sectors. Patents became tools for economic valorization and financial leverage for companies. Trademarks are increasingly becoming financial assets with potentially considerable value, and also enabling highly advantageous tax avoidance schemes for multinationals. 74 Last but not least, theWorld Intellectual Property Organization (WIPO) was created in 1967.
New challenges: patenting life and digital works
The question of the patentability of living organisms emerged in the 1980s. The first genetically modified organism (GMO) dates back to the 1970s. 75 The first patent on living organisms also dates back to 1980, when the U.S. Supreme Court ruled in Diamond v. Chakrabarty 76 recognized the patentability of a modified living organism. In 1983, the first plant GMO (antibiotic-resistant tobacco) was created in the laboratory.
These discoveries and legal events paved the way for “biotechnologies”, and led to ethical and legal debates on the patentability of living organisms. 77 and the use of GMOs in agriculture and medicine. Can living organisms be turned into commercial objects? Where does discovery end and invention begin (which, unlike discovery, may be patentable)? Is it fair to patent the knowledge of indigenous communities, which has in fact been pirated (e.g. patents on neem (India) and quinoa (South America)? It has also been shown 78 that patents reinforce the domination of large companies (such as Monsanto-Bayer, Syngenta), limit competition and marginalize small producers. This also impacts farmers in developing countries, who may be forced to buy seeds every year, as patented seeds are often protected against reseeding. The economic dependence thus created affects countries’ food sovereignty.
With the rise of information technology and the Internet, IP issues are evolving. Copyright, in particular, is becoming a major issue for the protection of digital works, such as software, databases and digital content (whose use for training AI systems is also a complex new challenge). The European Union is implementing directives aimed at harmonizing copyright within the single market, such as the Directive on Copyright in the Information Society (2001), which strengthens creators’ rights while promoting access to digital content.
The commons as an alternative to the privatization of intellectual property
The privatization of intellectual property poses a number of problems.
Firstly, it grants a temporary monopoly that can restrict access to knowledge and technologies, particularly in key areas such as health and the environment. Secondly, by protecting certain innovations for too long, it can hinder collaborative research and cumulative innovation. Furthermore, the costs of filing, maintaining and defending IP rights can be prohibitive, particularly for small businesses and independent innovators.
Finally, it raises two ethical questions.
- Many inventions benefit from a global environment and all the knowledge previously accumulated; the enrichment generated by patents, which can be very substantial, is not necessarily proportionate to the individual contribution of the author.
- When inventions are privatized, the resulting products and services become more expensive (due to the creation of rents). In the case of medicines and agricultural products, this can exclude entire populations from access to healthcare or basic necessities.
The alternative to traditional forms of IP (public or private) is collective management and sharing of intellectual resources without exclusive appropriation. This may involve goods accessible to all (such as free software or open databases), or goods subject to permissive licenses that encourage sharing.
Intellectual property and health
The COVID-19 pandemic has rekindled the debate on vaccine patents and discussions around “common pool” management of public health innovations. The C-TAP (COVID-19 Technology Access Pool) initiative initiative, launched by the WHO, aims to encourage the sharing of healthcare technologies. The NGO DNDI which promotes research into orphan diseases.
The human cost of patenting medicines
There are many examples of the terrible consequences of patenting in the healthcare sector. Here are just two.
In the late 1990s, the American company Myriad Genetics patented the BRCA1 and BRCA2 genes, associated with breast and ovarian cancer. These patents prevented other laboratories from developing cheaper diagnostic tests. The prohibitive cost of these tests (around $3,000 in the U.S.) prevented many women, particularly in poor countries or without health coverage, from accessing screening. In 2013, the US Supreme Court invalidated Myriad Genetics’ patents on these genes, ruling that natural DNA could not be patented.
In 2006, pharmaceutical giant Novartis attacked India’s patent law, which only allows the patenting of genuine innovations, not anecdotal variants of existing drugs created solely to “extend” the patent and thus the company’s monopoly. Novartis, for example, is seeking to retain control over the production of the anti-cancer drug Glivec. In 2013, the Indian Supreme Court definitively rejected Novartis’ claims, in a key ruling to protect the production of generic drugs. According to the Cancer Patients Aid Association, “As a result of the 2013 Supreme Court ruling, the price of Glivec has fallen from Rs. 150,000 (about $2,200 for a month’s treatment) to Rs. 6,000 ($88) on the generic market.”
Find out more
- La Cour suprême libère les gènes, op-ed by sociologist Maurice Cassier and geneticist Dominique Stoppa-Lyonnet in Le Monde (03/07/2013)
- What assessment five years after the Indian Supreme Court’s verdict on the Novartis case, Patralekha Chatterjee, Intellectual Property Watch (20/05/2018) and The patent regime in India and the Novartis case: Questions and answers, Médecins Sans Frontières, published before the Supreme Court’s decision.
The “free” world: open source software, creative commons licenses and Open Access
Open source software, such as Linux 79 are based on collective IP management, where the source code is accessible and modifiable by all. The general public license allows developers to use, modify and redistribute the software, while guaranteeing that modifications remain in the public domain.
In scientific research, the open access movement 80 (Open Access) movement advocates the publication of open-access work 81 allowing any researcher or citizen to consult and use research results.
Creative Commons or Copyleft licenses offer creators the possibility of sharing their work under certain conditions (such as acknowledgement of authorship, prohibition of modifications or non-commercial use), enabling wider distribution while maintaining a degree of control.
The benefits of managing intellectual property as a “common good
This type of shared IP management has a number of advantages. This model can enable knowledge to be disseminated more widely and rapidly, which is particularly beneficial in sectors such as healthcare (e.g.: sharing knowledge about medicines) or the environment. It fosters cumulative innovation, where players can freely build on eachother’s discoveries. By reducing the need to pay for licenses or exclusive rights, the commons model eases the financial burden of IP, which is advantageous for small businesses and independent researchers.
There are, however, a number of difficulties associated with joint management. Research often requires public funding or alternative reward models, such as grants, prizes or donation schemes. Collective management of IP requires clear governance mechanisms, to avoid over-exploitation and ensure that everyone’s contributions are recognized. Without this, intellectual resources run the risk of being misused or lacking the support they need to evolve. Finally, it is often necessary to strike a balance between openness (encouraging access and sharing) and control (enabling economic valuation), particularly in sectors where R&D costs are very high, such as pharmaceuticals or advanced technology.
Towards hybrid intellectual property?
We are seeing the emergence of models combining privatization and the commons, of which the following are just a few examples.
- Some licenses allow open use, while retaining partial control over commercial use, such as Creative Commons licenses with commercial use restrictions.
- Companies and research institutes choose to pool certain patents for free use (open patent). 82 ), provided this serves public interest objectives, as in the field of ecological technologies.
- Alternative reward systems: public prizes, grants and awards can encourage innovation without imposing exclusive patents, such as the UK’s Longitude Prize (1714), which provides an incentive to solve challenges of public interest without necessarily privatizing the results.
Find out more
- Our Evasion and tax havens fact sheet
- The Wikipedia page on the patentability of living organisms is very complete.
- Learning from the past, creating the future: Inventions and patents, World Intellectual Property Organization, 2007
- Quelles sciences pour le monde à venir, edited by Alain Grandjean and Thierry Libaert, Odile Jacob, 2020
- Framasoft, an association working for “digital emancipation”.
- See in particular their publishing house Des livres en communs, which publishes works under a Creative Commons license.
- The website of Richard Stallman, considered the father of free software
- The market is the object of a form of unconscious worship, agoratheism, highlighted by Stéphane Foucart in his book Des marchés et des dieux Grasset, 2018. ↩︎
- See David Cayla’s book, L’économie du réel, face aux modèles trompeurs (De Boeck, 2018). ↩︎
- They are of three kinds: the question of externalities, that of public or common goods, and that of monopolies. See, for example, Les défaillances de la régulation marchande, presentation by Christophe Rodrigues at the Journées de l’économie (JECO) 2012. ↩︎
- Like the carbon tax or the CO2 quota market, which are administered systems that create an artificial price signal. ↩︎
- Yet neoclassical economists still make the carbon price signal the central measure in the fight against climate change. See, for example, Christian Gollier, Director General of the Toulouse School of Economics, author of numerous articles and recently of the book Le climat après la fin du month (Alpha, 2019) and a lecture at the Collège de France in 2021. ↩︎
- See his best-known book: The Road to Serfdom (6th edition), PUF Quadrige, 2013. ↩︎
- On this subject, see Stéphane Foucart’s excellent book, Des marchés et des dieux, quand l’économie devient religion Grasset, 2018, and its review by Marion Cohen on the Chroniques de l’Anthropocène blog (Alain Grandjean’s blog) (18/10/2018). ↩︎
- See Karl Polanyi The great transformation. The political and economic origins of our time Gallimard 1983. ↩︎
- “Laissez faire, laisser passer” was a doctrine in vogue among liberal economists in the 18th century, and sums up their positions: let the market do its thing; let goods circulate without constraint (free trade). ↩︎
- Délégation interministérielle à l’aménagement du territoire et à l’action régionale, then Délégation interministérielle à l’aménagement du territoire et à l’attractivité régionale (2009). Administration that existed from 1963 to 2014, responsible for national policy on regional planning and development. Find out more on the Datar Wikipedia page. ↩︎
- See Planification écologique : de Jean-Luc Mélenchon à Emmanuel Macron, itinéraire d’un concept, Louis Mollier-Sabet, Public Sénat (19/04/2022). ↩︎
- Among the best-known are Murray Rothbard and Robert Nozick. There’s also Ayn Rand, who greatly inspired American libertarians and conservatives, although she herself rejects the term. ↩︎
- This does not exclude inequality in the exchange. ↩︎
- The European Central Bank estimates the number of transactions for the Euro area in 2023 at around 138 billion(ECB Data Portal: Total number of total payment transactions from Euro area, annual). The Carbone 4 consultancy extrapolated this figure to the entire world, concluding that there would be around 3,200 billion monetary transactions per year (see Le prix du Bitcoin a passé les 100 000$, une pièce de plus dans la machine à carbone?, Florian Zito (11/12/2024). ↩︎
- Primary, i.e. before taxes and social transfers. ↩︎
- There are numerous examples of this in Mexico, India, Mesopotamia, Korea and elsewhere. See, for example, Kenneth Hirth, The Organization of Ancient Economies: A Global Perspective (Cambridge University Press, 2020) or Karl Polanyi, Conrad M. Arensberg and Harry W. Pearson, Trade and markets in the early empires. On the diversity of economies (Le Bord de l’eau, 2017). That said, these markets are a far cry from the current model, which sees them as institutions that set a price based on the confrontation of supply and demand. ↩︎
- Price-setting in the USSR was centralized in 1932 (see Jacques Sapir, L’économie soviétique: origine, développement, fonctionnement, Historiens et Géographes, 1995). In Cambodia, when Pol Pot took power in 1975, he decreed the cancellation of the currency and the closure of the National Bank, whose building was dynamited. The rest is history. You can dislike money and still want to do without it. History has shown that the political consequences of a generalized move in this direction are disastrous. ↩︎
- See for example How did the Soviet economy work and why did it collapse, Ekaterina Sinelchtchikova, Russia Beyond (08/07/2019). ↩︎
- See for example L’exception écologique russe, systèmes et acteurs de 1917 à nos jours Josyane Moor-Stahl and Jacques Allaman, L’Harmattan, 1998. ↩︎
- As shown by the examples of contemporary China and Russia, and Pinochet’s Chile. ↩︎
- We won’t go into the economics of the gift here, as the gift is often followed by a counter-gift; and the world of the gift is not necessarily one of peace and cooperation; rivalry can be present. See Marcel Mauss’s seminal book, Essai sur le don Flammarion, reprinted in 2021, originally published in 1925. ↩︎
- Hybrid processes have been devised, such as tradable quotas (“ration coupons”). ↩︎
- See, for example, Michael Sandel’s book, What Money Can’t Buy Seuil, 2014. ↩︎
- Gross domestic product (GDP) is supposed to measure the new value created through the productive activity of a national economy. To find out more about its construction and limitations, see our module on GDP, growth and planetary limits. ↩︎
- Care work, the vast majority of which is done by women, covers a wide range of “domestic” activities, from breast-feeding to caring for an elderly parent, not forgetting “housework” (cleaning, cooking, etc.). ↩︎
- See Care work and care jobs for the future of decent work, International Labour Office, 2018 (figure 2.4). ↩︎
- See, for example, the debates on the “socialization” of health insurance in the United States. ↩︎
- For example, control quality at lower cost, protect a manufacturing secret, avoid litigation costs in the event of breach of contract or contractor bankruptcy. ↩︎
- In France, an energy “tariff shield” was introduced in 2022, to protect most consumers from soaring energy prices. Over three years, it will have cost the State a hundred billion in order of magnitude (see the 2023 annual report of the Haut conseil pour le climat. ↩︎
- See, for example, Thierry Libaert’s report to the French Ministry of Ecological and Social Transition in 2020, Publicité et transition écologique, and the references given in the bibliography, on page 80 and following. ↩︎
- See Jean Dellemotte, La “main invisible” d’Adam Smith : pour en finir avec les idées reçues, L’Économie politique, 2009. ↩︎
- Adam Smith, The Wealth of Nations (Vol. 1), 1776. ↩︎
- Friedrich Hayek, Law, Legislation and Freedom , 1973-79. ↩︎
- Markets are all the more interconnected when transactions involve easily substitutable or closely complementary products. ↩︎
- See Cournot’s Duopoly on Wikipedia. Oligopoly theory is now based on the theory of repeated games – see Marc Plantevit’s presentation Théorie des Jeux – Jeux Répétés. ↩︎
- Frank H. Knight, Risk, uncertainty and profit , 1921. ↩︎
- See this review by Igor Martinache of Claire Pignol’s book Villeneuve-d’Ascq, La théorie de l’équilibre général, Idées économiques et sociales, 2017. ↩︎
- Non-increasing returns to scale imply in particular that multiplying the quantity of inputs into a production by “x” multiplies production by “x” at most. ↩︎
- On the theory of general equilibrium, seeMisconception 2. ↩︎
- Karl Polanyi, The economy as an institutionalized process in Essays Seuil, 2002. ↩︎
- The regulatory authority for telecoms, energy, etc. ↩︎
- Isabelle Theiller, La création des marchés hebdomadaires, Histoires et société rurales, 2005. ↩︎
- Old German: “Niemer wirt der market guot wan sô man tôren schaden tuot”, quoted by Roland Czada, in the chapter Markt, in Arthur Benz et al, Handbuch Governance VS Verlag für Sozialwissenschaften, 2007. ↩︎
- See Comment vendre ses produits ou services sur une place de marché, on francenum.gouv.fr (12/12/2024). ↩︎
- This is what the EU is seeking to do with the Digital Markets Act , which aims to protect consumers and businesses from the dominant position of large digital platforms. ↩︎
- Douglass C. North, Understanding the process of economic change Princeton University Press, 2005 ; translation The Other Economy. ↩︎
- See Carbon markets – EU ETS on the French Ministry of Ecology website (consulted on 14/03/2025) and our Neutrality and carbon offsetting fact sheet. ↩︎
- See What is a dwelling subject to the 1948 law? on Service-Public.fr (consulted on 14/03/2025). ↩︎
- See the chapter “L’impérialisme de marché” in Michel Devoluy’s book, L’économie : une science “impossible” science – Déconstruire pour avancerVérone Editions, 2019. ↩︎
- A Friedman doctrine– The Social Responsibility of Business Is to Increase Its Profits, Milton Friedman, New York Times (13/09/1970). ↩︎
- Jean Tirole, Economics of the Common Good PUF, 2018. ↩︎
- See Et krach, la tulipe: histoire de la première bulle spéculative, Clémence Tanguy, Café de la Bourse (16/01/2018). ↩︎
- According to calculations by the International Institute of Social History, one 1635 florin is equivalent to around €10.30 in 2002. ↩︎
- See La crise des subprimes (2007-2008), La finance pour tous (04/01/2024) and the movie The Big Short (Adam McKay, 2015), which explains the role of opaque financial products in the scale of the crisis. ↩︎
- See Michel Volle’s book, iconomie Xerfi and Economica 2014; see also Increasing returns on the author’s blog. ↩︎
- See data collected by OICA (International Organization of Motor Vehicle Manufacturers) for 2017. ↩︎
- Avinash K. Dixit, Joseph E. Stiglitz, Monopolistic Competition and Optimum Product Diversity American Economic Review, 1977. ↩︎
- On the Nobel Prize in Economics, see Pourquoi le “Nobel d’économie” n’est pas un prix Nobel comme les autres, Anne-Aël Durand, Le Monde (09/10/2023). ↩︎
- See his book Theory of Industrial Organization Economica, 2015. ↩︎
- Today, European regulations bearing the name of the affected municipality identify particularly high-risk sites and focus on controlling the accidental release of toxic substances or energy (explosions). ↩︎
- The protection of private property generally ranks as a constitutional or even supra-constitutional right. It is, for example, a right recognized in general terms by the United Nations Universal Declaration of Human Rights, the European Convention on Human Rights and the Declaration of the Rights of Man and of the Citizen, the preamble to the French Constitution. ↩︎
- See the Enclosures Movement page on Wikipedia, and, to go further, The Great Transformation by Karl Polanyi (Gallimard, 1944) – especially chapter 3. ↩︎
- See for example Atteintes aux droits humains et à l’environnement : révélations sur le projet pétrolier de TotalEnergies en Ouganda et en Tanzanie, Julie Pietri – Charlotte Cosset, France Info (06/01/2023). ↩︎
- See, for example, the story of the fight in the European Parliament against the patentability of software, told with great humor and pedagogy by Michel Rocard, who was one of the main protagonists: Brevets et libertés, Cahiers Sens public, 2008. ↩︎
- This is the case, for example, with the Energy Charter Treaty (ECT) – See our fact sheet on the ECT. ↩︎
- Hardware refers to material aspects (phones, computers, chips, etc.); software to software aspects. ↩︎
- Data for this sector are taken from Bertrand Valiorgue’s book, Refonder l’agriculture à l’heure de l’anthropocène Le bord de l’eau, 2020 and the IPES-Food report, Too Big To Feed, Pat Mooney, 2017. ↩︎
- See Ces trois groupes industriels qui rassemblent plus de 1 400 marques de bière, Mathilde Damgé, Le Monde (21/07/2017). ↩︎
- See Derrière l’expression “Big Pharma”, des milliards de dollars mais une réalité plus complexe, Mathilde Damgé, Le Monde (26/11/2020). ↩︎
- Made possible by the invention of containers, which revolutionized sea freight. ↩︎
- Intellectual property includes patents, copyrights, industrial designs, plant varieties and geographical indications. Its worldwide protection was strengthened by the agreement on Trade-Related Aspects of Intellectual Property Rights(TRIPS ), concluded in 1995 under the aegis of the WTO under strong pressure from the digital, chemical and pharmaceutical industries. ↩︎
- This increases the risk of supply disruptions, including in sensitive sectors such as pharmaceuticals and the automotive industry. ↩︎
- See Laurence Scialom’s book, La fascination de l’ogre – ou comment desserrer l’étau de la finance Fayard, 2019. ↩︎
- See Brett Christophers’ hard-hitting analysis The Price is Wrong, Why Capitalism Won’t Save the Planet, Verso, 2024. ↩︎
- A contestable market is one in which potential competition (the “threat” of entry by a competing firm) guarantees competitive prices. See Wikipedia page Contestable market. ↩︎
- Barriers to entry may, for example, be due to restrictions on object interoperability or to exclusivity practices. If you’re interested in the European Union’s policy vision, you can refer to the EU guidelines for vertical and horizontal mergers. ↩︎
- The term market failure is well established in neoclassical economic literature. While we feel it is a good choice, this does not mean that we share the neoclassical normative idea that, once these failures have been corrected, markets are the optimal economic organization. ↩︎
- See the French translation of his famous speech to Lloyd’s on Alain Grandjean’s blog: Carney, Villeroy de Galhau, Turner: le risque climatique au coeur de la finance (11/11/2015). ↩︎
- 60%*3%+ 40%*15% = 7,8% ↩︎
- For an analysis of financial incentives in France, see Anne-Laure Delatte, L’État droit dans le mur Fayard, 2023. ↩︎
- It should be noted, however, that the share of “informal” jobs, defined as jobs that contravene social regulations, is significant – on average 20% in 2016 in the richest countries, according to an estimate by the International Labor Organization (Florence Bonnet, Joann Vanek and Martha Chen, Women and Men in the Informal Economy: A Statistical Brief, 2019) and the IMF (Gabriel Quiros-Romero, Thomas F Alexander, Jennifer Ribarsky, Measuring the Informal Economy, 2021). Informal” jobs are distinguished from “illegal” activities (contravening criminal law), “undeclared” activities (contravening tax law), as well as unreported activities (escaping national accounting. ↩︎
- See Jean Dellemotte, La “main invisible” d’Adam Smith : pour en finir avec les idées reçues, L’Économie politique, 2009. ↩︎
- See Claude Ménard, Mary. M. Shirley, Handbook or New Institutional Economics Springer US, 2008, and Douglass C. North and Barry R. Weingast, Constitutions and Commitment:The Evolution of Institutions Governing Public Choice in Seventeenth-Century England, The Journal of Economic History, 1989. See also Steve Pincus, The English Revolution of 1688: Political Economy and Radical Transformation, Revue d’histoire moderne et contemporaine, 2011. ↩︎
- See, for example, the survey La vraie vie des cuisiniers tamouls de Paris, Frantz Durupt , Michela Cuccagna, StreetPress (14/11/2014). ↩︎
- The opening scene of Francis Ford Coppola’s film The Godfather (1972), based on Mario Puzo’s novel of the same name, perfectly illustrates how the failure of the state encourages the emergence of parallel, clan-based and, in this case, criminal employment networks. ↩︎
- Christopher Woodruff, Establishing confidence in business partners chapter of Creating social trust in post-socialist transition by János Kornai, Bo Rothstein, Susan Rose-Ackerman, Springer, 2004. ↩︎
- Joseph E. Stiglitz, Some lessons from the East Asian Miracle The World Bank Research Observer, 1996. ↩︎
- In addition to this network of cooperative banks are the local savings banks, owned by municipalities and cantons (Kreis), whose credit volume is even greater than that of the cooperatives. ↩︎
- Elena Beccalli, Ludovico Rossi, Andrea Viola, Network vs integrated organizational structure of cooperative banks: evidence on the Italian reform, International Review of Financial Analysis, 2003. ↩︎
- Speech by the Governor of the Bank of Italy Ignazio Visco, Banca d’Italia (10/07/2018). ↩︎
- With Oliver Williamson. While several members of the economics faculties more or less hypocritically welcomed the awarding of the prize to a non-economist, one Chicago faculty professor considered with (a semblance of?) irony that the “profession would hate the fact that the Nobel Prize in Economics had been awarded to E. Ostrom as much as Republicans hated the fact that the Nobel Prize for Peace had been awarded to Obama”. Ostrom as much as Republicans hated the Nobel Peace Prize going to Obama”, Reactions to the Nobel in Economic Science, R.M. Schneiderman, New York Times (12/10/2009). ↩︎
- Garrett Hardin, The Tragedy of the Commons 1968(French edition: PUF, 2018). ↩︎
- This representation is often chosen to illustrate the problem of “joint” management of the monetary and financial resources to which Eurozone countries have access. Anchored in the mental frameworks of decision-makers and some sections of public opinion, and constantly reinforced by the declarations of political leaders and the analyses of economists, it makes it extremely difficult to find a lasting cooperative solution. ↩︎
- Elinor Ostrom, Governance of the Commons De Boeck, 2010. ↩︎
- The solution for the Eurozone, the Stability Pact, was a ban on monetary financing of public budgets and arbitrary numerical limits on public deficit and debt. This solution was both suboptimal and, in the long run, unworkable. A more appropriate representation, and one that would identify effective and sustainable governance, would be that of finance ministers having to reach agreement in two negotiating “arenas”, their national parliaments on the one hand, and the EU Council of Ministers on the other. This suggests a solution that leaves room for “simultaneous” negotiations at European and national level. ↩︎
- Among many others, communal management of meadows and forests in Switzerland, irrigation systems in Spain and the Philippines, groundwater in the United States, fisheries. ↩︎
- Claire Helen Quinn et al, Property rights in UK uplands and the implication for policy and management, Ecological Economics, 2010. ↩︎
- See for example: Harold Demsetz, The Structure of Ownership and the Theory of the Firm, Journal of Law and Economics, 1983: “It is a mistake to confuse the firm of [neoclassical] economic theory with its real-world namesake. The chief mission of neoclassical economics is to understand how the price system coordinates the use of resources, not the inner workings of real firms.” ↩︎
- “Independent”, but not necessarily more powerful in negotiation. ↩︎
- This does not rule out competitive bidding in human resources management or, for cost monitoring reasons, the use of internal prices set by accounting. ↩︎
- Ronald H. Coase, The nature of the firm, Economica, 1934. ↩︎
- Respectively awarded the Nobel Prize in Economics in 1972 (with John Hicks) and 2009 (with Elinor Ostrom). ↩︎
- Horizontal integration efforts are driven by the objective of gaining market share and influence, and exploiting economies of scale. ↩︎
- This is the “principal-agent” problem. ↩︎
- We won’t discuss the Kondratieff cycles here, as that would take us away from the subject at hand. Let’s just say a few words about them. In the 19th century, economist Nikolai Kondratieff identified long cycles lasting 40 to 60 years, alternating between phases of expansion and depression. The first phase, from 1790 to 1850, was characterized by the industrial boom, while the second, from 1850 to 1896, corresponded to the golden age of liberal capitalism, with innovations such as steel, electricity and chemistry. These cycles were punctuated by major crises, such as that of 1873. This “Great Depression”, which lasted until 1896, was not a global recession, but a relative stagnation marked by falling prices (deflation) and profits. It reflected the saturation of European markets and the rise of American and German competitors. ↩︎
- Ben Bernanke, Fed Chairman during the 2008-2009 crisis, knew the history of the 1929 crisis well, and didn’t repeat the same mistakes. This crisis was not painless, however, and it too demonstrated the unrealism of the dogma of market self-regulation. ↩︎
- Here are two references to help you understand this world: The economy of China , ↩︎
- See for example Le Pacte Vert, ce coupable idéal, Marie Bellan, Les Echos (05/02/2025). ↩︎
- The collective book edited in 2001 by Peter A. Hall and David Soskice, Varieties of Capitalism: The institutional foundations of Comparative Advantage (Oxford University Press), is considered the founding paving stone of this theory. ↩︎
- The Anglo-Saxon economies – USA, Canada, Australia, New Zealand – are the closest. ↩︎
- Among a thousand examples, let’s cite the particularly striking one of“Obamacare”, a law designed to expand and improve health coverage for Americans. It was enacted with countless difficulties by President Obama, and Donald Trump sought to repeal it in his first term. ↩︎
- Bruno Amable, The Diversity of Modern Capitalism Oxford University Press, 2003; The Five Capitalisms Seuil, 2023 (Read this interview with the author in Alternatives Économiques: Les cinq capitalismes (01/07/2005) ; Diversity and domination of national capitalisms chapter of the book Théorie de la régulation, un nouvel état des savoirs Dunod, 2023. ↩︎
- See The German banking system and the financial crisis, Patrick Brämer, Horst Gischer and Toni Richter, Regards sur l’économie allemande, 2013 and Wie die Europäische Kommission supranationales Recht durchsetzt – Der Konflikt um die Liberalisierung des öffentlich-rechtlichen Bankenwesens in Deutschland, Daniel Seikel, Politische Vierteljahresschrift, 2013. ↩︎
- The two best-known economists behind this movement of thought are David Friedman (Milton’s son) in his book Towards a stateless society (1973, published in French by Belles Lettres, 1992) and Murray Rothbard in L’Éthique de la liberté (1982, published in French in 2011 by Belles Lettres). ↩︎
- J.D. Vance, the vice-president (who claims to be inspired by blogger Curtis Yarvin, among others), Elon Musk, Peter Thiel and others. See Croyons les techno-monarchistes et libertariens américains lorsqu’ils annoncent vouloir se débarrasser de la démocratie, Marie Charrel, Le Monde (20/02/2025) and “Se préparer à l’Empire” : Curtis Yarvin, prophète des Lumières noires, Le Grand Continent (21/01/2025). ↩︎
- City-states, tax havens, enclaves, free ports, technopoles, tax-free zones or innovation hubs… Some of the best-known examples: Shenzen, Singapore, Dubai, Lichtenstein, the Hong Kong of the 80s, etc. ↩︎
- The submission of a few billionaires to Donald Trump is easy to understand. It’s harder to understand the democratic election of zealots for a “model” so obviously contrary to the interests of the middle and lower classes. ↩︎
- See Les États-Unis vers un national-capitalisme autoritaire, Pierre-Yves Hénin, The Conversation (16/12/2024). ↩︎
- This overview is largely based on the presentation given by the AMF on its website: Comprendre les marchés financiers (14/04/2020). ↩︎
- Currencies are not traded on an exchange. When they are convertible, they are generally traded against each other continuously on the foreign exchange market, which is an over-the-counter(OTC) market. ↩︎
- See his book Irrational Exuberance Valor, 2020. ↩︎
- Since July 2012, the European Market Infrastructure Regulation (EMIR) has made it mandatory to use the services of a clearing house for certain OTC derivatives. ↩︎
- Counterparty default risk -bankruptcy of seller or buyer- and settlement risk: buyer fails to pay or seller fails to deliver securities. ↩︎
- In cash or with deferred payment, using the Deferred Settlement Service whenever possible, which offers the possibility of deferring settlement-delivery operations to the end of the trading month. ↩︎
- In 1997, Myron Scholes and Robert Merton were awarded the “Nobel Prize in Economics” for their work on the Black-Scholes formula, confirming its importance in modern finance (Fischer Black died in 1995, so was unable to receive the prize). ↩︎
- The Black-Scholes formula is based on a mathematical model that calculates the theoretical price of acall option, taking into account the price of the underlying asset, volatility, time to expiration, risk-free interest rate and strike price. This formula is based on several simplifying assumptions, including the absence of arbitrage, the possibility of lending and borrowing at the risk-free rate, and constant volatility. ↩︎
- See Nicolas Bouleau’s book, Martingales and marchés financiersOdile Jacob, 1998. ↩︎
- Friedrich Hayek, The Use of Knowledge in Society, The American Economic Review, 1945. ↩︎
- See Nicolas Bouleau, Les marchés fumigènes, on his blog and his book Le mensonge de la finance Éditions de l’Atelier, 2018. ↩︎
- For a mathematical demonstration, see Future world prices for exhaustible resources (05/07/2013) on Nicolas Bouleau’s blog. ↩︎
- See our Hotelling rule fact sheet and Ivar Ekeland’s article in Alain Grandjean’s blog: A quand la fin du pétrole? (14/04/2023). ↩︎
- Nor are the State ‘ s accounts… ↩︎
- For waste, France has chosen the path of “Extended Producer Responsibility”, see La responsabilité élargie du producteur se générise (Extended Producer Responsibility is becoming widespread), Ademe dossier. ↩︎
- Caisse des Dépôts et Consignations has set up a subsidiary, CDC Biodiversité, to provide a response to the compensation requirements imposed on developers who artificialize land or degrade its biodiversity. They are liable for a “renaturation” obligation equivalent to the loss of nature due to the projects they carry out. CDC Biodiversité takes on this obligation (in return for a monetary transfer) and attempts to meet it by carrying out renaturation operations.However, feedback on biodiversity offsetting is not very convincing. ↩︎
- In his book The Economics of Welfare , 1920. ↩︎
- Present in the French Constitution, through the Charter of the Environment, article 4: “Everyone must contribute to repairing the damage they cause to the environment, under the conditions defined by law. ↩︎
- For a discussion of the economics of law, see Alain Supiot, Homo juridicus. Essay on the anthropological function of law Points, 2009. ↩︎
- See Une analyse économique des systèmes d’échanges de quotas d’émissions aux États-Unis et en Europe, Grégory Arnoult, Les blogs pédagogiques de Paris-Nanterre (08/07/2012): “The SO2 emissions trading market, adopted by amendments to the Clean Air Act of 1990, established two phases: the first running from 1990 to 1995 and the second from 1995 to 2000, with the aim of achieving a substantial reduction of 10 million tonnes of SO2 emissions” “compared with 1980 levels. This instrument has reduced SO2 emissions and the cost of these reductions with great success, by allowing facilities to be more flexible in finding innovative ways to reduce emissions more quickly and at lower cost.” ↩︎
- Scope 3 covers indirect emissions linked to a company’s upstream activities (purchases of materials and equipment, etc.), and downstream activities (use of products sold, recycling and end-of-life of products, etc.). Find out more with our sheet Counting greenhouse gas emissions. ↩︎
- Revealed: more than 90% of rainforest carbon offsets by biggest certifier are worthless, analysis shows, Patrick Greenfield (18/01/2023). ↩︎
- Which have nothing to do with the Svalbard World Seed Reserve or with community seed banks, which aim to preserve the genetic diversity of crops. ↩︎
- IPBES is the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. It is the biodiversity equivalent of the IPCC. See for example the Global assessment report on biodiversity and ecosystem services, 2019, the Thematic Assessment Report on the Interlinkages among Biodiversity, Water, Food and Health, 2024 and the Thematic assessment of the underlying causes of biodiversity loss and the determinants of transformative change and options for achieving the 2050 Vision for Biodiversity, 2024. ↩︎
- See for example Ursula von der Leyen proposes nature credits to reward “those who are at the service of our planet”, Nikolaus J. Kurmayer, Euractiv (13/09/2024). ↩︎
- See Arthur Pivin, Louise Dupuis, Certificats Biodiversité : Risques et Opportunités, Carbone 4, 2024. ↩︎
- See Arthur Pivin, Louise Dupuis, Certificats Biodiversité : Risques et Opportunités, Carbone 4, 2024. ↩︎
- See Pourquoi le “Nobel d’économie” n’est pas un prix Nobel comme les autres, Anne-Aël Durand, Le Monde (09/10/2023). ↩︎
- Jean Tirole, Economics of the Common Good PUF, 2018. ↩︎
- You need to estimate the effect of an increase in energy price on your consumption, which depends on its elasticity. This is not easy to know, and depends on many factors (income, geographical location, equipment, etc.). See our sheet Does the price of energy reduce consumption? ↩︎
- La valeur de l’action pour le climat: une référence pour évaluer et agir, France Stratégie, 2025. ↩︎
- See for example Une fiscalité élastique sur les carburants pour amortir les variations de prix, Quentin Perrier, Terra Nova, 2023. ↩︎
- For orthodox economist and “Nobel Prize winner” Jean Tirole,homo socialis, the evolution ofhomo economicus, still doesn’t communicate, but becomes more cooperative if injected with the hormone oxytocin (sic). Jean Tirole, Economics of the Common Good PUF, 2018 (chapter 5.II). ↩︎
- Jean Tirole, Economics of the Common Good PUF, 2018, chapter 8.II. ↩︎
- Elinor Ostrom, A polycentric approach for coping with climate change World Bank, 2009. See also Benjamin Coriat’s book, The common good, the climate and the market. Response to Jean Tirole Les Liens qui Libèrent, 2021 as well as our sheet on property types. ↩︎
- Elinor Ostrom, A polycentric approach for coping with climate change World Bank, 2009 (page 13). ↩︎
- See for example La théorie du “doux commerce” et ses limites lorsque la mondialisation ralente, Alain Beuve-Méry, Le Monde (05/07/2023). ↩︎
- Joseph E. Stiglitz chapter Industrial Policy, Learning and Development from The Practice of Industrial Policy: Government-Business Coordination in Africa and East Asia, edited by John Page, Finn Tarp, Oxford University Press, Stiglitz, J. E. (2017). ↩︎
- See Le cassis de Dijon, accélérateur du marché intérieur, La Croix (20/12/2020). ↩︎
- The United States was the first country to pass legislation against mergers and abusive business practices, with the Sherman Antitrust Act of 1890. See Essentiel 3.2 Structuring markets: combating concentration. ↩︎
- The Cecchini report was directed by the Italian economist of the same name, at the request of the European Commission in 1988. Its aim was to estimate the “cost of non-Europe”. A summary can be read on the Archive of European Integration website (curiously hosted by the University of Pittsburg). An “update” of the report was made by the European Parliament in 2014: The Cost of Non-Europe in the Single Market (‘Cecchini Revisited’). ↩︎
- Seebox on pure and perfect competition, in Misconception 2. ↩︎
- See, for example, David Graeber’s book, Bureaucracy Les liens qui libèrent, 2015. ↩︎
- Directive 88/361/EEC does, however, provide for exceptions, notably in the event of economic or monetary crises, under which Member States may reintroduce temporary controls. ↩︎
- See the excellent comic book Champs de bataille (Delcourt, 2024) by Inès Léraud and Pierre Van Hove, which tells the story of land consolidation. ↩︎
- Consolidation is a land operation aimed at grouping plots together to make it easier to farm with machinery. ↩︎
- See the Cour des Comptes report La politique d’installation des nouveaux agriculteurs et de transmission des exploitations agricoles, 2023. ↩︎
- This amount also includes other structural and investment funds (e.g. the Cohesion Fund). See Wikipedia’s European Union regional policy page. ↩︎
- Employment: driving low-carbon transformation, The Shift Project, 2021, see in particular the chapter “An industrial policy for low-carbon transformation and employment”, p. 159-192. ↩︎
- This directive, adopted in 1996 and revised in 2018, establishes, among other things, the principle of “equal pay for equal work in the same workplace”. See the article What is the posted workers directive on touteleurope.eu (10/07/2020). ↩︎
- This involves compliance with a series of indicators or ratios(public deficit/GDP, debt/GDP, inflation, exchange rate and interest rate), which is a precondition for candidate countries joining the Euro-zone. Deficit and debt ratios will gradually become major management rules for European states. See our European Economic Governance fact sheet. ↩︎
- In particular, by making the free movement of capital one of the four fundamental freedoms of the internal market (alongside goods, services and people). ↩︎
- See for example the article Infographics: greenhouse gas emissions in the European Union on touteleurope.eu (21/11/2024). ↩︎
- Report on economic and monetary union in the European Community, 1989. ↩︎
- The future of European competitiveness, 2024. ↩︎
- Letta Report: Much more than a market, 2024. ↩︎
- See Comment rentabiliser les investissements de la transition écologique, Marion Cohen, Alain Grandjean, blog Chroniques de l’Anthropocène by Alain Grandjean (02/01/2025). ↩︎
- This is the aim of the Letta report(Much more than a market) presented to the President of the European Commission in 2024. ↩︎
- The single capital market initiative is complemented by a banking union project. ↩︎
- Matthias Bauer, What is Wrong with Europe’s Shattered Single Market? – Lessons from Policy Fragmentation and Misdirected Approaches to EU Competition Policy, European Center for International Political Economy, 2023. ↩︎
- Marx is heir to the classical theory of value. If the value of a product is equal to the labor put into making it, the difference between the selling price and this value, what Marx calls surplus value, is “undue”. Marx considers it to be stolen from the workers. ↩︎
- During its creation and start-up phase, it often lives on the capital initially provided by its founders. ↩︎
- The image of the auctioneer is sometimes used by economists to represent the workings of a market. But it doesn’t correspond to any concrete reality other than that of the auction room. The stock market and financial markets are probably the only “markets” where the mechanism of price formation is well understood. Algorithms (there are no auctioneers!) analyze, in real time, the order books of buyers and sellers, and establish the price that allows maximum trading. See Stock quotes on the ABCbourse website. ↩︎
- See Jean Dellemotte, La “main invisible” d’Adam Smith : pour en finir avec les idées reçues, L’Économie politique, 2009. ↩︎
- The “neoclassical” economists abandoned Smith’s labor-value theory to propose a mathematical model of the economy, initially based on a simplistic representation of “homo economicus”: economic agents behave by maximizing their “utility” under budgetary constraints. Companies, on the other hand, maximize their rate of profit. In this theory, the value of a good is its “marginal utility”. ↩︎
- On the subject of the Nobel Prize in Economics, see Pourquoi le “Nobel d’économie” n’est pas un prix Nobel comme les autres, Anne-Aël Durand, Le Monde (09/10/2023). ↩︎
- Gérard Debreu, Theory of Value. An Axiomatic Analysis of Economic Equilibrium Wiley, 1959, translated into French by Dunod, 1984. Wikipedia’s page ongeneral equilibrium provides an overview of Debreu’s model. ↩︎
- Here are a few references on the subject: Steve Keen, L’Imposture économique Éditions de l’atelier, 2014 and Derrière l’imposture de la “science” économique, qu’y a-t-il?, post by Jean-Marie Harribey on Alternatives Économiques (26/11/2014). ↩︎
- Debreu’s demonstration uses Kakutani’s fixed-point theorem, which assumes a higher level of mathematical knowledge. ↩︎
- In his article What is perfect competition? published on his website. ↩︎
- Pure and perfect competition is synonymous with free and undistorted competition. ↩︎
- On the rationality of agents, see Le rationnel et l’irrationnel dans les choix du consommateur, Luís Santos-Pinto, La Vie Économique, 2016. ↩︎
- See our module GDP, growth and planetary limits, our fact sheet Global warming: what impact on growth? as well as Alain Grandjean, Les modèles IAMs et leurs limites, Chaire Énergie et Prospérité, 2024 and Alain Grandjean, Gaël Giraud, Comparaison des modèles météorologiques, climatiques et économiques: quelles capacités, quelles limites, quels usages?, Chaire Énergie et Prospérité, 2017. ↩︎
- This post reports on an IMF article published in early October 2024 that constitutes a minor revolution in the world of macroeconomics: it presents an original conceptual framework in which Nature is at the heart of the economic system. ↩︎
- See GEMMES, an application to understand the effects of climate change on the economy, AFD (03/01/2019). ↩︎
- Unlike Stalin, Hitler relied on the business community, and made the fortunes of the owners of Volkswagen, BMW, Deutsche Bank, Siemens, Daimler (Mercedes-Benz), ThyssenKrupp, Continental, and IG Farben, the manufacturer of the Zyklon B gas used in the extermination camps, from which the chemical giants Bayer and BASF emerged. See this comprehensive article on this little-known economic period: Volker Hentschel, L’économie du Troisième Reich, in État et société en Allemagne sous le IIIe Reich edited by Gilbert Krebs and Gérard Schneilin, Presses Sorbonne Nouvelle, 2018. See also the book by Gabriel Galand and Alain Grandjean, La monnaie dévoilée L’Harmattan, 1997. ↩︎
- In his book, The great transformation. The political and economic origins of our time 1944, published in French by Gallimard in 2009. ↩︎
- See, for example, Wendy Brown, Undoing the demos. Neoliberalism, a revolution by stealth Amsterdam Publishing, 2019. ↩︎
- See La montée du péril totalitaire d’extrême droite est une des manifestations de l’entrée en crise du régime néolibéral, Le Monde (29/11/2024), op-ed by Nicolas Postel and Richard Sobel, authors of Que sais-je? Karl Polanyi Presses Universitaires de France, 2024. ↩︎
- We would now say the biosphere or Nature. ↩︎
- Embedding and disembedding are key concepts in Polanyi’s work (see Nicolas Postel and Richard Sobel, Que sais-je ? Karl Polanyi Presses Universitaires de France, 2024). ↩︎
- Polanyi then speaks of a “market society”, where human beings are no longer considered as anything other than “Homo economicus”… which they are not. ↩︎
- The overproduction of elites creates instability, multiplying conflicts within elites, generating groups of radical opponents and exacerbating social tensions. This phenomenon, combined with growing inequality, often paves the way for periods of crisis, or even violent breakdown (revolutions, civil wars, collapsing empires). ↩︎
- Eugene Fama, Efficient Capital Markets: A Review of Theory and Empirical Works, Journal of Finance, 1970. ↩︎
- See the book by Alain Grandjean and Julien Lefournier, L’illusion de la finance verte Éditions de l’Atelier, 2021. ↩︎
- See the Sustainable finance page on the European Commission website. ↩︎
- On the Nobel Prize in Economics, see Pourquoi le “Nobel d’économie” n’est pas un prix Nobel comme les autres, Anne-Aël Durand, Le Monde (09/10/2023). ↩︎
- See Bernard Guerrien and Ozgur Gun, L’étrange silence du Nobel Prize Committee sur la “théorie des marchés efficients”, Revue de la régulation, 2013. ↩︎
- Eugene Fama, Efficient Capital Markets: A Review of Theory and Empirical Works, Journal of Finance, 1970, pages 383-417. ↩︎
- See for example Michel Albouy, Peut-on encore croire à l’efficience des marchés financiers, Revue française de gestion, 2005. ↩︎
- One of whose founders, Richard Thaler, was also awarded the Nobel Prize in 2017. ↩︎
- On the Nobel Prize in Economics, see Pourquoi le “Nobel d’économie” n’est pas un prix Nobel comme les autres, Anne-Aël Durand, Le Monde (09/10/2023). ↩︎
- See Robert Shiller’s book, Irrational Exuberance Valor, 2020. ↩︎
- Nicolas Bouleau, Critique de l’efficience des marchés financiers, on his blog (28/05/2013). See also the work of Bernard Guerrien and in particular his article La “théorie des marchés efficients” : une imposture qui semble arranger tout le monde (académique), 2019, published on his personal website, and Gaël Giraud’s book: Illusion financière Éditions de l’atelier, 2014. ↩︎
- Brownian motion is a mathematical description of the random movement of a particle immersed in a liquid and subject to no interaction other than collisions with the liquid’s molecules. The result is a highly irregular motion of the particle, which was first described by botanist Robert Brown, observing the spontaneous movements of pollen grains. It was mathematically modelled by Louis Bachelier (who later applied the mathematical model to finance) and Albert Einstein. ↩︎
- See Alain Grandjean, Crises et fractales : quels enseignements?, Le Magazine de la Communication de Crise et Sensible, 2006; Benoît Mandelbrot, Richard L. Hudson, Une approche fractale des marchés, Odile Jacob, 2009; books by Christian Walter, Le virus B, crise financière et mathématique with Michel de Pracontal, Seuil, 2009, and The Random Walk Model in Finance Economica, 2013. ↩︎
- This expression, common in the financial world, means achieving a higher return than the market (which can be measured by an indicator such as the CAC 40). ↩︎
- See Garrett Hardin, The Tragedy of the Commons , 1968. Published in French by Presses universitaires de France, presentation by Dominique Bourg, 2018. ↩︎
- See La Pêche à la Coquille Saint-Jacques en baie de Saint-Brieuc – Une gestion durable et responsable, on the Saint-Quay-Portrieux Tourisme website. ↩︎
- The market is the object of a form of unconscious worship, agoratheism, highlighted by Stéphane Foucart in his book Des marchés et des dieux Grasset, 2018. ↩︎
- The OECD regularly publishes reports comparing the healthcare systems of its member countries. The “Health at a Glance” report is a benchmark, offering indicators on quality of care, efficiency, access and healthcare expenditure in different systems, whether predominantly public (as in the UK and France) or private (as in the USA). ↩︎
- See for example Aux Etats-Unis, le coût ruineux de la santé, Arnaud Leparmentier, Le Monde (08/27/2019). ↩︎
- Steffie Woolhandler, Terry Campbell, David U. Himmelstein, Costs of health care administration in the United States and Canada, The New England Journal of Medicine, 2003. ↩︎
- Irene Papanicolas, Liana R. Woskie, and Ashish K. Jha, Spending on health and health outcomes: a comparison of 11 western countries with different levels of health expenditure, JAMA, 2018. ↩︎
- See Benjamin Goodair and Aaron Reeves, The effect of health-care privatisation on the quality of care, The Lancet, 2024. ↩︎
- See Unregulated and unaccountable – How India’s private health sector is endangering women’s lives, Oxfam, 2013. ↩︎
- Anna Marriott and Marame Ndour, Getting the private healthcare sector to help the poorest: common sense or blind optimism, 2013. ↩︎
- See, for example, Pierre-André Juven, Frédéric Pierru, and Fanny Vincent, The breakup of the century. About public hospital reforms Éditions Raisons d’agir, 2019. ↩︎
- See Essentiel 8 of this module and these posts on Alain Grandjean’s Chroniques de l’Anthropocène blog: Marion Cohen, Le dogme économique, au cœur du désaveu européen (24/05/2019) and Alain Grandjean, Le tout marché au coeur du triple échec européen (20/10/2016). ↩︎
- These include: Saint-Gobain, Paribas, TF1, Crédit commercial de France, Compagnie générale d’électricité (which became Alcatel-Alsthom then Alcatel), Société générale, Havas, Matra, Suez, Crédit local de France, Renault, Rhône-Poulenc, BNP, Elf-Aquitaine, UAP, SEITA, TOTAL, COFACE, AGF, CGM (sold to CMA which became CMA-CGM), Péchiney, Usinor-Sacilor, BFCE (which gave birth to the bank Natexis, and later Natixis and BPCE), Bull, Air France, Crédit lyonnais, France Télécom, Eramet, GAN, Thomson Multimédia, CIC, CNP, Aérospatiale (EADS), Autoroutes Paris-Rhin-Rhône, SNECMA (renamed Safran), Société des autoroutes du Nord et de l’Est de la France, Autoroutes du sud de la France, Gaz de France, Électricité de France, Aéroports de Paris, DCNS, GRTgaz. ↩︎
- See the parliamentary report: Rapport fait au nom de la commission d’enquête sur la libéralisation du fret ferroviaire et ses conséquences pour l’avenir, 2023. ↩︎
- All the more so since, at European level, social dumping has increased with European enlargement. ↩︎
- See the Brétigny-sur-Orge rail accident Wikipedia page. ↩︎
- See Nicolas Meunier et al, Les idées reçues sur le transport de marchandises et le climat, Carbone 4, 2023. ↩︎
- See this article by Aurélien Bigo, Le train, grand oublié de la transition énergétique?, The Conversation (20/06/2018). ↩︎
- See La relance du fret ferroviaire, French Ministry of Ecology press kit, 2021. ↩︎
- See for example Kurt Jax, David N. Barton, Kai Ming Adam Chan, Rudolf de Groot et al, Ecosystem services and ethics, Ecological Economics, 2013. ↩︎
- The interactions between Nature and human beings are highly complex. See Richard B. Norgaard, Ecosystem Services: From Eye-Opening Metaphor to Complexity Blinder, Ecological Economics, 2010. ↩︎
- Former banker, founder of Gist, a transition consultancy, and among other things President of WWF International from 2018 to 2021. See TEEB Synthesis Report: Mainstreaming the Economics of Nature: A Synthesis of the Approach, Conclusions and Recommendations of TEEB, 2010. ↩︎
- See Écotree Pro’s post ” Les entreprises ont intérêt à préserver la biodiversité” (02/02/2022). ↩︎
- Nicola Gallai, Jean-Michel Salles, Josef Settele, Bernard E. Vaissière, Economic valuation of the vulnerability of world agriculture confronted with pollinator decline, Ecological Economics, 2008. ↩︎
- IPBES, Assessment report on pollinators, pollination and food production – Summary for decision-makers, 2016. ↩︎
- See Robert Costanza, et. al, Global Environmental Change, Nature, 2014. ↩︎
- Approche économique de la biodiversité et des services liés aux écosystèmes, La Documentation Française, 2009. ↩︎
- Building land prices in 2019, DataLab, Ministry of Ecology, 2020. ↩︎
- We also address this misconception in our module on work and unemployment. ↩︎
- Economists have developed numerous analyses aimed at making the elementary market economy framework more complex, see this fairly comprehensive presentation of the various theories by Christian Bialès: Le marché du travail – Un panorama des théories économiques, de l’orthodoxie aux hétérodoxies, 2017. ↩︎
- See, for example, the case of Sweden’s carbon tax (Julius J. Andersson, Carbon Taxes and CO₂ Emissions: Sweden as a Case Study, American Economic Journal: Economic Policy, 2019), and that of British Columbia (Brian Murray, Nicholas Rivers, British Columbia’s Revenue-Neutral Carbon Tax: A Review of the Latest ‘Grand Experiment’ in Environmental Policy, Energy Policy, 2015). ↩︎
- Annika Stechemesser et al, Climate policies that achieved major emission reductions: Global evidence from two decades, Science, 2024. For further details, see the Climate Policy Explorer from the Potsdam-Institute for Climate Impact Research and this introductory article: Insight Brief: The Climate Policy Explorer (22/08/2024) from the Institute for New Economic Thinking – Oxford. ↩︎
- Hence the suggestions for “green cheques” or tax breaks that have been implemented in British Columbia. As for Sweden, the success of the carbon tax introduced in 1991 can only be understood as part of an overall scheme (including a proactive policy on heating networks). See, for example, Comment la Suède a créé la taxe carbone la plus élevée au monde, Matthieu Jublin, Alternatives Économiques (08/08/2022). ↩︎
- See 1474: l’invention du brevet à Venise, Gérard Vindt, Alternatives Économiques (25/07/2019). ↩︎
- See Monopoly Statute 1623, United Kingdom on the WIPO website. ↩︎
- See What is the European Unitary Patent? on the website of the French Ministry of the Economy (28/06/2023). ↩︎
- See our Evasion and tax havens fact sheet. ↩︎
- In 1973, American scientists Herbert Boyer and Stanley Cohen succeeded in creating the first genetically modified bacterium by inserting a gene into the DNA of an Escherichia coli bacterium to make it produce a foreign protein. ↩︎
- The case concerned a bacterium genetically modified by scientist Ananda Chakrabarty to degrade hydrocarbons and, potentially, combat oil spills. The Court ruled that this bacterium, modified for a specific function, could be patented, as it did not exist naturally in nature. ↩︎
- See Wikipedia’s comprehensive page on the patentability of living organisms. ↩︎
- See for example Brevets sur le vivant : une appropriation grandissante, Denis Meshaka and Hélène Tordjman, Inf’OGM (01/07/2024). ↩︎
- Linux is a free Open Source operating system released under the GNU General Public License (GPL), created by Linus Torvalds in 1991. Anyone can run, study, modify, redistribute the source code, and even sell copies of its modified code, as long as they do so under the same license. See Linux, what is it? on the site of RedHat, one of the main private players in open source. ↩︎
- See Wikipedia’s Open access (scientific edition) page. ↩︎
- This movement arose from the concentration of publishers of scientific articles, which made publication and access to publication very expensive. See the book Quelles sciences pour le monde à venir edited by Alain Grandjean and Thierry Libaert, Odile Jacob, 2020. ↩︎
- An open patent is a patent whose holder has decided to make its use free under certain conditions. This means that the patent holder allows other people or companies to use the protected invention, without necessarily demanding royalties or restrictive licenses, often with the aim of promoting innovation, cooperation or technological standardization. ↩︎