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A market intervention is a policy or measure that modifies or interferes with a market, typically done in the form of state action, but also by philanthropic and political-action groups. Market interventions can be done for a number of reasons, including as an attempt to correct market failures, [1] or more broadly to promote public interests or protect the interests of specific groups.
Economic interventions can be aimed at a variety of political or economic objectives, including but not limited to promoting economic growth, increasing employment, raising wages, raising or reducing prices, reducing income inequality, managing the money supply and interest rates, or increasing profits. A wide variety of tools can be used to achieve these aims, such as taxes or fines, state owned enterprises, subsidies, or regulations such as price floors and price ceilings.
Price floors impose a minimum price at which a transaction may occur within a market. These can be enforced by the government, as well as by non-governmental groups that are capable of wielding market power.
In contrast to a price floor, a price ceiling establishes a maximum price at which a transactions can occur in a market. A serious issue for price floors as well, but especially for price ceilings, is the emergence of black markets for the good or service in question. [2]
Another possible form of market intervention is a quantity ceiling. This essentially ensures that only a certain quantity of a good or service is produced and traded on a market. An example of such an intervention includes emission permits or credits, whereby some market participants are able to offset their activity by paying other participants to reduce their own quantity.
While theoretically possible, quantity floors are rarer in practice. Such an intervention ensures that the market quantity does not fall below a certain level. Among other methods, this could be achieved by purchasing the marketed product, such as the case of a jobs guarantee that ensures the utilisation of labour. It can also take the form of a legally binding level of producer output, also known as a production quota.
Conventionally, taxation is used as a form of revenue generation. However, it has been observed as long ago as the 14th century that taxation can influence trade and suppress economic activity. [3] In practice, this is sometimes seen as a desirable outcome, and taxes are levied with the intention of stymieing or limiting a market.
Economist Arthur Pigou used the concept of externalities developed by Alfred Marshall to suggest that taxes and subsidies should be used to internalise costs that are not fully captured by existing market structures. [4] In his honour, these have been named Pigouvian taxes and subsidies. [5]
A significant but often overlooked form of market intervention is the way that social and institutional norms, conventions, or rules can impact the function of markets. Different methods of "tâtonnement" (finding equilibrium) lead to different outcomes as these methods carry different rigidity, search, and menu costs. Together, these form what are referred to as transaction costs, a concept developed among others by American John Commons and further by English economist Ronald Coase. [6]
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Market interventions include:
Economics is a social science that studies the production, distribution, and consumption of goods and services.
In economics, a free market is an economic system in which the prices of goods and services are determined by supply and demand expressed by sellers and buyers. Such markets, as modeled, operate without the intervention of government or any other external authority. Proponents of the free market as a normative ideal contrast it with a regulated market, in which a government intervenes in supply and demand by means of various methods such as taxes or regulations. In an idealized free market economy, prices for goods and services are set solely by the bids and offers of the participants.
In economics, deadweight loss is the loss of societal economic welfare due to production/consumption of a good at a quantity where marginal benefit does not equal marginal cost – in other words, there are either goods being produced despite the cost of doing so being larger than the benefit, or additional goods are not being produced despite the fact that the benefits of their production would be larger than the costs. The deadweight loss is the net benefit that is missed out on. While losses to one entity often lead to gains for another, deadweight loss represents the loss that is not regained by anyone else. This loss is therefore attributed to both producers and consumers.
Environmental economics is a sub-field of economics concerned with environmental issues. It has become a widely studied subject due to growing environmental concerns in the twenty-first century. Environmental economics "undertakes theoretical or empirical studies of the economic effects of national or local environmental policies around the world. ... Particular issues include the costs and benefits of alternative environmental policies to deal with air pollution, water quality, toxic substances, solid waste, and global warming."
In economics, an externality or external cost is an indirect cost or benefit to an uninvolved third party that arises as an effect of another party's activity. Externalities can be considered as unpriced components that are involved in either consumer or producer market transactions. Air pollution from motor vehicles is one example. The cost of air pollution to society is not paid by either the producers or users of motorized transport to the rest of society. Water pollution from mills and factories is another example. All (water) consumers are made worse off by pollution but are not compensated by the market for this damage. A positive externality is when an individual's consumption in a market increases the well-being of others, but the individual does not charge the third party for the benefit. The third party is essentially getting a free product. An example of this might be the apartment above a bakery receiving some free heat in winter. The people who live in the apartment do not compensate the bakery for this benefit.
This aims to be a complete article list of economics topics:
A subsidy or government incentive is a type of government expenditure for individuals and households, as well as businesses with the aim of stabilizing the economy. It ensures that individuals and households are viable by having access to essential goods and services while giving businesses the opportunity to stay afloat and/or competitive. Subsidies not only promote long term economic stability but also help governments to respond to economic shocks during a recession or in response to unforeseen shocks, such as the COVID-19 pandemic.
Arthur Cecil Pigou was an English economist. As a teacher and builder of the School of Economics at the University of Cambridge, he trained and influenced many Cambridge economists who went on to take chairs of economics around the world. His work covered various fields of economics, particularly welfare economics, but also included business cycle theory, unemployment, public finance, index numbers, and measurement of national output. His reputation was affected adversely by influential economic writers who used his work as the basis on which to define their own opposing views. He reluctantly served on several public committees, including the Cunliffe Committee and the 1919 Royal Commission on income tax.
In law and economics, the Coase theorem describes the economic efficiency of an economic allocation or outcome in the presence of externalities. The theorem is significant because, if true, the conclusion is that it is possible for private individuals to make choices that can solve the problem of market externalities. The theorem states that if the provision of a good or service results in an externality and trade in that good or service is possible, then bargaining will lead to a Pareto efficient outcome regardless of the initial allocation of property. A key condition for this outcome is that there are sufficiently low transaction costs in the bargaining and exchange process. This 'theorem' is commonly attributed to Nobel Prize laureate Ronald Coase.
A Pigouvian tax is a tax on any market activity that generates negative externalities. A Pigouvian tax is a method that tries to internalize negative externalities to achieve the Nash equilibrium and optimal Pareto efficiency. The tax is normally set by the government to correct an undesirable or inefficient market outcome and does so by being set equal to the external marginal cost of the negative externalities. In the presence of negative externalities, social cost includes private cost and external cost caused by negative externalities. This means the social cost of a market activity is not covered by the private cost of the activity. In such a case, the market outcome is not efficient and may lead to over-consumption of the product. Often-cited examples of negative externalities are environmental pollution and increased public healthcare costs associated with tobacco and sugary drink consumption.
Social cost in neoclassical economics is the sum of the private costs resulting from a transaction and the costs imposed on the consumers as a consequence of being exposed to the transaction for which they are not compensated or charged. In other words, it is the sum of private and external costs. This might be applied to any number of economic problems: for example, social cost of carbon has been explored to better understand the costs of carbon emissions for proposed economic solutions such as a carbon tax.
A price floor is a government- or group-imposed price control or limit on how low a price can be charged for a product, good, commodity, or service. It is one type of price support; other types include supply regulation and guarantee government purchase price. A price floor must be higher than the equilibrium price in order to be effective. The equilibrium price, commonly called the "market price", is the price where economic forces such as supply and demand are balanced and in the absence of external influences the (equilibrium) values of economic variables will not change, often described as the point at which quantity demanded and quantity supplied are equal. Governments use price floors to keep certain prices from going too low.
Government failure, in the context of public economics, is an economic inefficiency caused by a government intervention, if the inefficiency would not exist in a true free market. The costs of the government intervention are greater than the benefits provided. It can be viewed in contrast to a market failure, which is an economic inefficiency that results from the free market itself, and can potentially be corrected through government regulation. However, Government failure often arises from an attempt to solve market failure. The idea of government failure is associated with the policy argument that, even if particular markets may not meet the standard conditions of perfect competition required to ensure social optimality, government intervention may make matters worse rather than better.
Modern monetary theory or modern money theory (MMT) is a heterodox macroeconomic theory that describes currency as a public monopoly and unemployment as evidence that a currency monopolist is overly restricting the supply of the financial assets needed to pay taxes and satisfy savings desires. According to MMT, governments do not need to worry about accumulating debt since they can pay interest by printing money. MMT argues that the primary risk once the economy reaches full employment is inflation, which acts as the only constraint on spending. MMT also argues that inflation can be controlled by increasing taxes on everyone, to reduce the spending capacity of the private sector.
In neoclassical economics, a market distortion is any event in which a market reaches a market clearing price for an item that is substantially different from the price that a market would achieve while operating under conditions of perfect competition and state enforcement of legal contracts and the ownership of private property. A distortion is "any departure from the ideal of perfect competition that therefore interferes with economic agents maximizing social welfare when they maximize their own". A proportional wage-income tax, for instance, is distortionary, whereas a lump-sum tax is not. In a competitive equilibrium, a proportional wage income tax discourages work.
The history of economic thought is the study of the philosophies of the different thinkers and theories in the subjects that later became political economy and economics, from the ancient world to the present day.
Public economics(or economics of the public sector) is the study of government policy through the lens of economic efficiency and equity. Public economics builds on the theory of welfare economics and is ultimately used as a tool to improve social welfare. Welfare can be defined in terms of well-being, prosperity, and overall state of being.
The following outline is provided as an overview of and topical guide to economics:
This glossary of economics is a list of definitions of terms and concepts used in economics, its sub-disciplines, and related fields.
The global carbon reward is a proposed international policy for establishing and funding a new global carbon market for decarbonising all sectors of the world economy, and for establishing and funding a new economic sector dedicated to carbon dioxide removal (CDR). The policy is market-based, and it will offer proportional financial rewards in exchange for verifiable climate mitigation services and co-benefits. The policy approach was first presented in 2017 by Delton Chen, Joël van der Beek, and Jonathan Cloud to address the 2015 Paris Agreement, and it has since been refined.