Portal:Economics

Introduction

Economics (/ˌɛkəˈnɒmɪks, ˌiːkə-/) is a social science that studies the production, distribution, and consumption of goods and services.

Economics focuses on the behaviour and interactions of economic agents and how economies work. Microeconomics analyses what is viewed as basic elements within economies, including individual agents and markets, their interactions, and the outcomes of interactions. Individual agents may include, for example, households, firms, buyers, and sellers. Macroeconomics analyses economies as systems where production, distribution, consumption, savings, and investment expenditure interact; and the factors of production affecting them, such as: labour, capital, land, and enterprise, inflation, economic growth, and public policies that impact these elements. It also seeks to analyse and describe the global economy. (Full article...)

Selected general articles

Image 1
The mythological Judgement of Paris required selecting from three incomparable alternatives (the goddesses shown).

Decision theory or the theory of rational choice is a branch of probability, economics, and analytic philosophy that uses expected utility and probability to model how individuals would behave rationally under uncertainty. It differs from the cognitive and behavioral sciences in that it is mainly prescriptive and concerned with identifying optimal decisions for a rational agent, rather than describing how people actually make decisions. Despite this, the field is important to the study of real human behavior by social scientists, as it lays the foundations to mathematically model and analyze individuals in fields such as sociology, economics, criminology, cognitive science, moral philosophy and political science. (Full article...)
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Koopmans in 1967

Tjalling Charles Koopmans (August 28, 1910 – February 26, 1985) was a Dutch-American mathematician and economist. He was the joint winner with Leonid Kantorovich of the 1975 Nobel Memorial Prize in Economic Sciences for his work on the theory of the optimum allocation of resources. Koopmans showed that on the basis of certain efficiency criteria, it is possible to make important deductions concerning optimum price systems. (Full article...)
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Game theory is the study of mathematical models of strategic interactions. It has applications in many fields of social science, and is used extensively in economics, logic, systems science and computer science. Initially, game theory addressed two-person zero-sum games, in which a participant's gains or losses are exactly balanced by the losses and gains of the other participant. In the 1950s, it was extended to the study of non zero-sum games, and was eventually applied to a wide range of behavioral relations. It is now an umbrella term for the science of rational decision making in humans, animals, and computers.

Modern game theory began with the idea of mixed-strategy equilibria in two-person zero-sum games and its proof by John von Neumann. Von Neumann's original proof used the Brouwer fixed-point theorem on continuous mappings into compact convex sets, which became a standard method in game theory and mathematical economics. His paper was followed by Theory of Games and Economic Behavior (1944), co-written with Oskar Morgenstern, which considered cooperative games of several players. The second edition provided an axiomatic theory of expected utility, which allowed mathematical statisticians and economists to treat decision-making under uncertainty. (Full article...)
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In the history of economic thought, ancient economic thought refers to the ideas from people before the Middle Ages.

Economics in the classical age is defined in the modern analysis as a factor of ethics and politics, only becoming an object of study as a separate discipline during the 18th century. (Full article...)
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The first issue of Ms. magazine examined feminist economics in a piece by Jane O'Reilly

Feminist economics is the critical study of economics and economies, with a focus on gender-aware and inclusive economic inquiry and policy analysis. Feminist economic researchers include academics, activists, policy theorists, and practitioners. Much feminist economic research focuses on topics that have been neglected in the field, such as care work, intimate partner violence, or on economic theories which could be improved through better incorporation of gendered effects and interactions, such as between paid and unpaid sectors of economies. Other feminist scholars have engaged in new forms of data collection and measurement such as the Gender Empowerment Measure (GEM), and more gender-aware theories such as the capabilities approach. Feminist economics is oriented toward the social ecology of money.

Feminist economists call attention to the social constructions of traditional economics, questioning the extent to which it is positive and objective, and showing how its models and methods are biased by an exclusive attention to masculine-associated topics and a one-sided favoring of masculine-associated assumptions and methods. While economics traditionally focused on markets and masculine-associated ideas of autonomy, abstraction and logic, feminist economists call for a fuller exploration of economic life, including such "culturally feminine" topics such as family economics, and examining the importance of connections, concreteness, and emotion in explaining economic phenomena. (Full article...)
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In the history of economic thought, a school of economic thought is a group of economic thinkers who share or shared a mutual perspective on the way economies function. While economists do not always fit within particular schools, particularly in the modern era, classifying economists into schools of thought is common. Economic thought may be roughly divided into three phases: premodern (Greco-Roman, Indian, Persian, Islamic, and Imperial Chinese), early modern (mercantilist, physiocrats) and modern (beginning with Adam Smith and classical economics in the late 18th century, and Karl Marx and Friedrich Engels' Marxian economics in the mid 19th century). Systematic economic theory has been developed primarily since the beginning of what is termed the modern era.

Currently, the great majority of economists follow an approach referred to as mainstream economics (sometimes called 'orthodox economics'). Economists generally specialize into either macroeconomics, broadly on the general scope of the economy as a whole, and microeconomics, on specific markets or actors. (Full article...)
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Portrait, after 1743

François Quesnay (/keɪˈneɪ/; French: [fʁɑ̃swa kɛnɛ]; 4 June 1694 – 16 December 1774) was a French economist and physician of the Physiocratic school. He is known for publishing the "Tableau économique" (Economic Table) in 1758, which provided the foundations of the ideas of the Physiocrats. This was perhaps the first work attempting to describe the workings of the economy in an analytical way, and as such can be viewed as one of the first important contributions to economic thought. His Le Despotisme de la Chine, written in 1767, describes Chinese politics and society, and his own political support for enlightened despotism. (Full article...)
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Mathematical economics is the application of mathematical methods to represent theories and analyze problems in economics. Often, these applied methods are beyond simple geometry, and may include differential and integral calculus, difference and differential equations, matrix algebra, mathematical programming, or other computational methods. Proponents of this approach claim that it allows the formulation of theoretical relationships with rigor, generality, and simplicity.

Mathematics allows economists to form meaningful, testable propositions about wide-ranging and complex subjects which could less easily be expressed informally. Further, the language of mathematics allows economists to make specific, positive claims about controversial or contentious subjects that would be impossible without mathematics. Much of economic theory is currently presented in terms of mathematical economic models, a set of stylized and simplified mathematical relationships asserted to clarify assumptions and implications. (Full article...)
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Ragnar Frisch, c. before 1944

Ragnar Anton Kittil Frisch (3 March 1895 – 31 January 1973) was an influential Norwegian economist and econometrician known for being one of the major contributors to establishing economics as a quantitative and statistically informed science in the early 20th century. He coined the term econometrics in 1926 for utilising statistical methods to describe economic systems, as well as the terms microeconomics and macroeconomics in 1933, for describing individual and aggregate economic systems, respectively. He was the first to develop a statistically informed model of business cycles in 1933. Later work on the model, together with Jan Tinbergen, won the first Nobel Memorial Prize in Economic Sciences in 1969.

Frisch became dr.philos. with a thesis on mathematics and statistics at the University of Oslo in 1926. After his doctoral thesis, he spent five years researching in the United States at the University of Minnesota and Yale University. After teaching briefly at Yale from 1930–31, he was offered a full professorship in economics, which he declined after pressures by colleagues to return to the University of Oslo. After returning to Oslo, Frisch was first appointed by the King-in-Council as Professor of Economics and Statistics at the Faculty of Law, University of Oslo (then the Royal Frederick University) in 1931, before becoming leader of the newly founded Institute of Economics at the University of Oslo in 1932. He remained at the University of Oslo until his retirement in 1965. (Full article...)
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Friedrich August von Hayek (8 May 1899 – 23 March 1992) was an Austrian-born British academic and philosopher. He is known for his contributions to political economy, political philosophy and intellectual history. Hayek shared the 1974 Nobel Memorial Prize in Economic Sciences with Gunnar Myrdal for work on money and economic fluctuations, and the interdependence of economic, social and institutional phenomena. His account of how prices communicate information is widely regarded as an important contribution to economics that led to him receiving the prize. He was a major contributor to the Austrian school of economics.

During his teenage years, Hayek fought in World War I. He later said this experience, coupled with his desire to help avoid the mistakes that led to the war, drew him into economics. He earned doctoral degrees in law in 1921 and political studies in 1923 from the University of Vienna. He subsequently lived and worked in Austria, Great Britain, the United States and Germany. He became a British national in 1938. He studied and taught at the London School of Economics and later at the University of Chicago, before returning to Europe late in life to teach at the Universities of Salzburg and Freiburg. (Full article...)
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Econometrics is an application of statistical methods to economic data in order to give empirical content to economic relationships. More precisely, it is "the quantitative analysis of actual economic phenomena based on the concurrent development of theory and observation, related by appropriate methods of inference." An introductory economics textbook describes econometrics as allowing economists "to sift through mountains of data to extract simple relationships." Jan Tinbergen is one of the two founding fathers of econometrics. The other, Ragnar Frisch, also coined the term in the sense in which it is used today.

A basic tool for econometrics is the multiple linear regression model. Econometric theory uses statistical theory and mathematical statistics to evaluate and develop econometric methods. Econometricians try to find estimators that have desirable statistical properties including unbiasedness, efficiency, and consistency. Applied econometrics uses theoretical econometrics and real-world data for assessing economic theories, developing econometric models, analysing economic history, and forecasting. (Full article...)
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Hicks in 1972

Sir John Richard Hicks (8 April 1904 – 20 May 1989) was a British economist. He is considered one of the most important and influential economists of the twentieth century. The most familiar of his many contributions in the field of economics were his statement of consumer demand theory in microeconomics, and the IS–LM model (1937), which summarised a Keynesian view of macroeconomics. His book Value and Capital (1939) significantly extended general-equilibrium and value theory. The compensated demand function is named the Hicksian demand function in memory of him.

In 1972 he received the Nobel Memorial Prize in Economic Sciences (jointly) for his pioneering contributions to general equilibrium theory and welfare theory. (Full article...)
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Frank Hyneman Knight (November 7, 1885 – April 15, 1972) was an American economist who spent most of his career at the University of Chicago, where he became one of the founders of the Chicago School.

Nobel laureates Milton Friedman, George Stigler and James M. Buchanan were all students of Knight at Chicago. Ronald Coase said that Knight, without teaching him, was a major influence on his thinking. F.A. Hayek considered Knight to be one of the major figures in preserving and promoting classical liberal thought in the twentieth century. (Full article...)
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Humanistic economics is a distinct pattern of economic thought with old historical roots that have been more recently invigorated by E. F. Schumacher's Small Is Beautiful: Economics as if People Mattered (1973). Proponents argue for "persons-first" economic theories as opposed to mainstream economic theories which are understood as often emphasizing financial gain over human well-being. In particular, the overly abstract human image implicit in mainstream economics is critically analyzed and instead it attempts a rethinking of economic principles, policies and institutions based on a richer and more balanced view of human nature. (Full article...)
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Oskar Lange

Oskar Ryszard Lange (Polish: [ˈlanɡɛ]; 27 July 1904 – 2 October 1965) was a Polish economist and diplomat. He is best known for advocating the use of market pricing tools in socialist systems and providing a model of market socialism. He responded to the economic calculation problem proposed by Ludwig von Mises and Friedrich Hayek by claiming that managers in a centrally-planned economy would be able to monitor supply and demand through increases and declines in inventories of goods, and advocated the nationalization of major industries. During his stay in the United States, Lange was an academic teacher and researcher in mathematical economics. Later in socialist Poland, he was a member of the Central Committee of the Polish United Workers' Party. (Full article...)
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Marshall circa the release of Principles (1890)

Alfred Marshall (26 July 1842 – 13 July 1924) was an English economist and one of the most influential economists of his time. His book Principles of Economics (1890) was the dominant economic textbook in England for many years, and brought the ideas of supply and demand, marginal utility, and costs of production into a coherent whole, popularizing the modern neoclassical approach which dominates microeconomics to this day. As a result, he is known as the father of scientific economics. (Full article...)
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Antoine Augustin Cournot (French: [ɑ̃twan oɡystɛ̃ kuʁno]; 28 August 1801 – 31 March 1877) was a French philosopher and mathematician who contributed to the development of economics. (Full article...)
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William Stanley Jevons (/ˈdʒɛvənz/; 1 September 1835 – 13 August 1882) was an English economist and logician.

Irving Fisher described Jevons's book A General Mathematical Theory of Political Economy (1862) as the start of the mathematical method in economics. It made the case that economics, as a science concerned with quantities, is necessarily mathematical. In so doing, it expounded upon the "final" (marginal) utility theory of value. Jevons' work, along with similar discoveries made by Carl Menger in Vienna (1871) and by Léon Walras in Switzerland (1874), marked the opening of a new period in the history of economic thought. Jevons's contribution to the marginal revolution in economics in the late 19th century established his reputation as a leading political economist and logician of the time. (Full article...)
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This aims to be a complete article list of economics topics: (Full article...)
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Solow in 2008

Robert Merton Solow, GCIH (/ˈsoʊloʊ/; August 23, 1924 – December 21, 2023) was an American economist who received the 1987 Nobel Memorial Prize in Economic Sciences, and whose work on the theory of economic growth culminated in the exogenous growth model named after him.

He was Institute Professor Emeritus of Economics at the Massachusetts Institute of Technology, where he was a professor from 1949 on. He was awarded the John Bates Clark Medal in 1961, the Nobel Memorial Prize in Economic Sciences in 1987, and the Presidential Medal of Freedom in 2014. Four of his PhD students, George Akerlof, Joseph Stiglitz, Peter Diamond, and William Nordhaus, later received Nobel Memorial Prizes in Economic Sciences in their own right. (Full article...)
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Monetary circuit theory is a heterodox theory of monetary economics, particularly money creation, often associated with the post-Keynesian school.
It holds that money is created endogenously by the banking sector, rather than exogenously by central bank lending; it is a theory of endogenous money. It is also called circuitism and the circulation approach. (Full article...)
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The upper-left space $\Theta$ depicts the type space and the upper-right space X the space of outcomes. The social choice function $f(\theta )$ maps a type profile to an outcome. In games of mechanism design, agents send messages $M$ in a game environment $g$ . The equilibrium in the game $\xi (M,g,\theta )$ can be designed to implement some social choice function $f(\theta )$ .

Mechanism design (sometimes implementation theory or institution design) is a branch of economics and game theory. It studies how to construct rules—called mechanisms or institutions—that produce good outcomes according to some predefined metric, even when the designer does not know the players' true preferences or what information they have. Mechanism design thus focuses on the study of solution concepts for a class of private-information games.

Mechanism design has broad applications, including traditional domains of economics such as market design, but also political science (through voting theory). It is a foundational component in the operation of the internet, being used in networked systems (such as inter-domain routing), e-commerce, and advertisement auctions by Facebook and Google. (Full article...)
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In macroeconomics, chartalism is the theory of money that money originated historically with states' attempts to direct economic activity rather than as a spontaneous solution to the problems with barter or as a means with which to tokenize debt, and that fiat currency has value in exchange because of sovereign power to levy taxes on economic activity payable in the currency they issue. (Full article...)
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Anarchism is a political philosophy and movement that seeks to abolish all institutions that perpetuate authority, coercion, or hierarchy, primarily targeting the state and capitalism. Anarchism advocates for the replacement of the state with stateless societies and voluntary free associations. A historically left-wing movement, anarchism is usually described as the libertarian wing of the socialist movement (libertarian socialism).

Although traces of anarchist ideas are found all throughout history, modern anarchism emerged from the Enlightenment. During the latter half of the 19th and the first decades of the 20th century, the anarchist movement flourished in most parts of the world and had a significant role in workers' struggles for emancipation. Various anarchist schools of thought formed during this period. Anarchists have taken part in several revolutions, most notably in the Paris Commune, the Russian Civil War and the Spanish Civil War, whose end marked the end of the classical era of anarchism. In the last decades of the 20th and into the 21st century, the anarchist movement has been resurgent once more, growing in popularity and influence within anti-capitalist, anti-war and anti-globalisation movements. (Full article...)
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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.^{[verification needed]}
MMT is opposed to the mainstream understanding of macroeconomic theory and has been criticized heavily by many mainstream economists. MMT is also strongly opposed by members of the Austrian school of economics. (Full article...)

Did you know...

... that a banker was named the prime minister of Equatorial Guinea after his predecessor resigned during an economic crisis?
... that anti-Korean sentiment, due to South Korea's economic growth, motivated Djuna to write the sci-fi novel Counterweight?
... that scientists from the Institutum Divi Thomae raised silkworms at Saint Gregory Seminary during World War II as a form of economic warfare against Japan?
... that soprano Galina Pisarenko studied economics, English, and Norwegian at the same time she was studying to become a professional opera singer?
... that in the essay "Toward European Unity" George Orwell presumed that one of the greatest obstacles to a federal Europe would be economic pressure by the United States?
... that the selection of Palu as capital of Palu Regency led to protests from the nearby town of Donggala, concerned they would lose out on economic development?

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Selected images

Image 1A basic illustration of a business cycle (from Economics)
Image 2A map showing the main trade routes for goods within late medieval Europe (from Economics)
Image 3A 1638 painting of a French seaport during the heyday of mercantilism
Image 4An environmental scientist sampling water
Image 5The supply and demand model describes how prices vary as a result of a balance between product availability and demand. The graph depicts an increase in demand from D₁ to D₂ and the resulting increase in price and quantity required to reach a new equilibrium point on the supply curve (S).
Image 6An example production–possibility frontier with illustrative points marked (from Economics)
Image 7The U.S. unemployment rate from 1990 to 2022 (from Economics)
Image 8List of countries by gross domestic product (PPP) per capita in April 2022 (from Economics)
Image 9Pollution can be a simple example of market failure; if costs of production are not borne by producers but are by the environment, accident victims or others, then prices are distorted.
Image 10São Paulo Stock Exchange in Brazil, an electronic trading network that brings together buyers and sellers through an electronic trading platform
Image 11The publication of Adam Smith's The Wealth of Nations in 1776 is considered to be the first formalisation of economic thought.
Image 12The Marxist critique of political economy comes from the work of German philosopher Karl Marx.
Image 13John Maynard Keynes, a key economics theorist (from Economics)
Image 14Economists study trade, production, and consumption decisions, including those that occur in a traditional marketplace

In the news

25 April 2025 – German economic crisis: The German government cuts its economic growth forecast to zero, with the Deutsche Bundesbank estimating a future recession. Minister of Economic Affairs Robert Habeck accuses U.S. President Donald Trump's Liberation Day tariffs of being the primary reason for Germany's continued economic crisis. (DW)
11 April 2025 – Tariffs in the second Trump administration: China states that it will not respond to any further U.S. tariff increases, as U.S. goods have already been priced out of the Chinese market by existing tariffs, but may still impose other economic measures. (CNBC)
7 April 2025 – Tariffs in the second Trump administration, Executive orders in the second presidency of Donald Trump: European Commission president Ursula von der Leyen offers to negotiate with Trump to avoid a trade war and further economic panic, including a zero-for-zero tariff deal on all industrial goods. (Politico) (Euronews)

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