Market failure

Market failure

Market failure is a concept within economic theory wherein the allocation of goods and services by a free market is not efficient. That is, there exists another conceivable outcome where a market participant may be made better-off without making someone else worse-off. Market failures can be viewed as scenarios where individuals' pursuit of pure self-interest leads to results that are not efficient – that can be improved upon from the societal point-of-view.[1][2] The first known use of the term by economists was in 1958,[3] but the concept has been traced back to the Victorian philosopher Henry Sidgwick.[4]

Market failures are often associated with information asymmetries,[5] non-competitive markets, principal-agent problems, externalities,[6] or public goods.[7] The existence of a market failure is often used as a justification for government intervention in a particular market.[8][9] Economists, especially microeconomists, are often concerned with the causes of market failure, and possible means to correct such a failure when it occurs.[10] Such analysis plays an important role in many types of public policy decisions and studies. However, some types of government policy interventions, such as taxes, subsidies, bailouts, wage and price controls, and regulations, including attempts to correct market failure, may also lead to an inefficient allocation of resources, sometimes called government failure.[11] Thus, there is sometimes a choice between imperfect outcomes, i.e. imperfect market outcomes with or without government interventions. But either way, if a market failure exists the outcome is not pareto efficient. Mainstream neoclassical and Keynesian economists believe that it may be possible for a government to improve the inefficient market outcome, while several heterodox schools of thought disagree with this.[12]

Contents

Categories

Different economists have different views about what events are the sources of market failure. Mainstream economic analysis widely accepts a market failure (relative to Pareto efficiency) can occur for three main reasons: if the market is "monopolised" or a small group of businesses hold significant market power, if production of the good or service results in an externality, or if the good or service is a "public good".[2]

Monopolies

Agents in a market can gain market power, allowing them to block other mutually beneficial gains from trades from occurring. This can lead to inefficiency due to imperfect competition, which can take many different forms, such as monopolies,[13] monopsonies, cartels, or monopolistic competition, if the agent does not implement perfect price discrimination. In a monopoly, the market equilibrium will no longer be Pareto optimal.[13] The monopoly will use its market power to restrict output below the quantity at which the marginal social benefit is equal to the marginal social cost of the last unit produced, so as to keep prices and profits high.[13] An issue for this analysis is whether a situation of market power or monopoly is likely to persist if unaddressed by policy, or whether competitive or technological change will undermine it over time.

It is then a further question about what circumstances allow a monopoly to arise. Economists say that monopolies can maintain themselves where there are "barriers to entry".

Public goods

Some markets can fail due to the nature of certain goods, or the nature of their exchange. For instance, goods can display the attributes of public goods[13] or common-pool resources, while markets may have significant transaction costs, agency problems, or informational asymmetry.[2][13] In general, all of these situations can produce inefficiency, and a resulting market failure. A related issue can be the inability of a seller to exclude non-buyers from using a product anyway, as in the development of inventions that may spread freely once revealed. This can cause underinvestment, such as where a researcher cannot capture enough of the benefits from success to make the research effort worthwhile.

Natural monopoly

Natural monopoly, or the overlapping concepts of "practical" and "technical" monopoly, is an extreme case of failure of competition as a restraint on producers. The problem is described as one where the more of a product is made, the less the unit costs are. This means it only makes economic sense to have one producer.

Externalities

The actions of agents can have externalities,[6][13] which are innate to the methods of production, or other conditions important to the market.[2] For example, when a firm is producing steel, it absorbs labor, capital and other inputs, it must pay for these in the appropriate markets, and these costs will be reflected in the market price for steel.[13] If the firm also pollutes the atmosphere when it makes steel, however, and if it is not forced to pay for the use of this resource, then this cost will be borne not by the firm but by society.[13] Hence, the market price for steel will fail to incorporate the full opportunity cost to society of producing.[13] In this case, the market equilibrium in the steel industry will not be optimal.[13] More steel will be produced than would occur were the firm to have to pay for all of its costs of production.[13] Consequently, the marginal social cost of the last unit produced will exceed its marginal social benefit.[13]

Common examples of an externality is environmental harm such as pollution or overexploitation of natural resources.[2]

Traffic congestion is an example of market failure, since driving can impose hidden costs on other drivers and society. Solutions for this include public transportation, congestion pricing, toll roads and toll bridges, and other ways of making the driver include the social cost in the decision to drive.[2]

Bounded rationality

In Models of Man, Herbert Simon points out that most people are only partly rational, and are emotional/irrational in the remaining part of their actions. In another work, he states "boundedly rational agents experience limits in formulating and solving complex problems and in processing (receiving, storing, retrieving, transmitting) information" (Williamson, p. 553, citing Simon). Simon describes a number of dimensions along which "classical" models of rationality can be made somewhat more realistic, while sticking within the vein of fairly rigorous formalization. These include:

  • limiting what sorts of utility functions there might be.
  • recognizing the costs of gathering and processing information.
  • the possibility of having a "vector" or "multi-valued" utility function.

Simon suggests that economic agents employ the use of heuristics to make decisions rather than a strict rigid rule of optimization. They do this because of the complexity of the situation, and their inability to process and compute the expected utility of every alternative action. Deliberation costs might be high and there are often other, concurrent economic activities also requiring decisions.

Information asymmetry

Information asymmetries and incomplete markets may result in economic inefficiency but also a possibility of improving efficiency through market, legal, and regulatory remedies. From contract theory, decisions in transactions where one party has more or better information than the other is an asymmetry. This creates an imbalance of power in transactions which can sometimes cause the transactions to go awry. Examples of this problem are adverse selection and moral hazard. Most commonly, information asymmetries are studied in the context of principal-agent problems. George Akerlof, Michael Spence, and Joseph E. Stiglitz developed the idea.

Property right as right of control

Hugh Gravelle and Ray Rees argue that more fundamentally, the underlying cause of market failure is often a problem of property rights.

A market is an institution in which individuals or firms exchange not just commodities, but the rights to use them in particular ways for particular amounts of time. [...] Markets are institutions which organize the exchange of control of commodities, where the nature of the control is defined by the property rights attached to the commodities.[9]

As a result, agents' control over the uses of their commodities can be imperfect, because the system of rights which defines that control is incomplete. Typically, this falls into two generalized rights – excludability and transferability. Excludability deals with the ability of agents to control who uses their commodity, and for how long – and the related costs associated with doing so. Transferability reflects the right of agents to transfer the rights of use from one agent to another, for instance by selling or leasing a commodity, and the costs associated with doing so. If a given system of rights does not fully guarantee these at minimal (or no) cost, then the resulting distribution can be inefficient.[9] Considerations such as these form an important part of the work of institutional economics.[14] Nonetheless, views still differ on whether something displaying these attributes is meaningful without the information provided by the market price system.[15]

Interpretations and policy

The above causes represent the mainstream view of what market failures mean and of their importance in the economy. This analysis follows the lead of the neoclassical school, and relies on the notion of Pareto efficiency[16] – and specifically considers market failures absent considerations of the "public interest", or equity, citing definitional concerns.[10] This form of analysis has also been adopted by the Keynesian or new Keynesian schools in modern macroeconomics, applying it to Walrasian models of general equilibrium in order to deal with failures to attain full employment, or the non-adjustment of prices and wages.

Many social democrats and "New Deal liberals", have adopted this analysis for public policy, so they view market failures as a very common problem of any unregulated market system and therefore argue for state intervention in the economy in order to ensure both efficiency and social justice (usually interpreted in terms of limiting avoidable inequalities in wealth and income). Both the democratic accountability of these regulations and the technocratic expertise of the economists play an important role here in shaping the kind and degree of intervention. Neoliberals follow a similar line, often focusing on "market-oriented solutions" to market failure: for example, they propose going beyond the common idea of having the government charge a fee for the right to pollute (internalizing the external cost, creating a disincentive to pollute) to allow polluters to sell the pollution permits.

Some remedies for market failure can resemble other market failures. For example, the issue of systematic underinvestment in research is addressed by the patent system that creates artificial monopolies for successful inventions.

Objections

Public choice

Economists such as Milton Friedman from the Chicago school and others from the Public Choice school, argue that market failure does not necessarily imply that government should attempt to solve market failures, because the costs of government failure might be worse than those of the market failure it attempts to fix. This failure of government is seen as the result of the inherent problems of democracy and other forms of government perceived by this school and also of the power of special-interest groups (rent seekers) both in the private sector and in the government bureaucracy. Conditions that many would regard as negative are often seen as an effect of subversion of the free market by coercive government intervention. Beyond philosophical objections, a further issue is the practical difficulty that any single decision maker may face in trying to understand (and perhaps predict) the numerous interactions that occur between producers and consumers in any market.

Austrian

Advocates of laissez-faire capitalism, such as some economists of the Austrian School, argue that there is no such phenomenon as "market failures". Israel Kirzner states that: "Efficiency for a social system means the efficiency with which it permits its individual members to achieve their individual goals".[17] Inefficiency only arises when means are chosen by individuals that are inconsistent with their desired goals.[18] This definition of efficiency differs from that of Pareto efficiency, and forms the basis of the theoretical argument against the existence of market failures. However, providing that the conditions of the first welfare theorem are met, these two definitions agree, and give identical results. Austrians argue that the market tends to eliminate its inefficiencies through the process of entrepreneurship driven by the profit motive; something the government has great difficulty detecting, or correcting.[19]

Marxian

Finally, objections also exist on more fundamental bases, such as that of equity, or Marxian analysis. Colloquial uses of the term "market failure" reflect the notion of a market "failing" to provide some desired attribute different from efficiency – for instance, high levels of inequality can be considered a "market failure", yet are not Pareto inefficient, and so would not be considered a market failure by mainstream economics.[2] In addition, many Marxian economists would argue that the system of individual property rights is a fundamental problem in itself, and that resources should be allocated in another way entirely. This is different from concepts of "market failure" which focuses on specific situations – typically seen as "abnormal" – where markets have inefficient outcomes. Marxists, in contrast, would say that markets have inefficient and democratically-unwanted outcomes – viewing market failure as an inherent feature of any capitalist economy – and typically omit it from discussion, preferring to ration finite goods not exclusively through a price mechanism, but based upon need as determined by society expressed through the community.

See also

Notes

  1. ^ John O. Ledyard (2008). "market failure," The New Palgrave Dictionary of Economics, 2nd Ed. Abstract.
  2. ^ a b c d e f g Paul Krugman and Robin Wells (2006). Economics, New York, Worth Publishers.
  3. ^ Francis M. Bator (1958). "The Anatomy of Market Failure," Quarterly Journal of Economics, 72(3) pp. 351–379 (press +).
  4. ^ Steven G. Medema (2007). "The Hesitant Hand: Mill, Sidgwick, and the Evolution of the Theory of Market Failure," History of Political Economy, 39(3), pp. 331-358. 2004 Online Working Paper.
  5. ^ • Charles Wilson (2008). "adverse selection," The New Palgrave Dictionary of Economics 2nd Edition. Abstract.
       • Joseph E. Stiglitz (1998). "The Private Uses of Public Interests: Incentives and Institutions," Journal of Economic Perspectives, 12(2), pp. 3-22.
  6. ^ a b J.J. Laffont (2008). "externalities," The New Palgrave Dictionary of Economics, 2nd Ed. Abstract.
  7. ^ Joseph E. Stiglitz (1989). "Markets, Market Failures, and Development," American Economic Review, 79(2), pp. 197-203.
  8. ^ Kenneth J. Arrow (1969). "The Organization of Economic Activity: Issues Pertinent to the Choice of Market versus Non-market Allocations," in Analysis and Evaluation of Public Expenditures: The PPP System, Washington, D.C., Joint Economic Committee of Congress. PDF reprint as pp. 1-16 (press +).
  9. ^ a b c Gravelle, Hugh; Ray Rees (2004). Microeconomics. Essex, England: Prentice Hall, Financial Times. pp. 314–346. 
  10. ^ a b Mankiw, Gregory; Ronald Kneebone, Kenneth McKenzie, Nicholas Row (2002). Principles of Microeconomics: Second Canadian Edition. United States: Thomson-Nelson. pp. 157–158. 
  11. ^ Weimer, David; Aidan R. Vining (2004). Policy Analysis: Concepts and Practice. Prentice Hall. 
  12. ^ Mankiw, N. Gregory (2009). Brief Principles of Macroeconomics. South-Western Cengage Learning. pp. 10–12. 
  13. ^ a b c d e f g h i j k l DeMartino, George (2000). Global Economy, Global Justice. Routledge. p. 70. ISBN 0415224012. http://books.google.com/?id=bh66WFcdT9sC&printsec=frontcover#PPA70,M1. 
  14. ^ Bowles, Samuel (2004). Microeconomics: Behavior, Institutions, and Evolution. United States: Russel Sage Foundation. 
  15. ^ Machan, R. Tibor, Some Skeptical Reflections on Research and Development, Hoover Press
  16. ^ MacKenzie, D.W. (2002-08-26). "The Market Failure Myth". Ludwig von Mises Institute. http://mises.org/article.aspx?Id=1035. Retrieved 2008-11-25. 
  17. ^ Israel Kirzner (1963). Market Theory and the Price System. Princeton. N.J.: D. Van Nostrand Company. pp. 35. 
  18. ^ Roy E. Cordato (1980). "The Austrian Theory of Efficiency and the Role of Government". The Journal of Libertarian Studies 4 (4): 393–403. http://www.mises.org/journals/jls/4_4/4_4_6.pdf. 
  19. ^ Roy E. Cordato (1980). "The Austrian Theory of Efficiency and the Role of Government". The Journal of Libertarian Studies 4 (4): 393–403. http://www.mises.org/journals/jls/4_4/4_4_6.pdf. 

References

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