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 the basic elements of economies, including individual agents and markets, their interactions, and the outcomes of those interactions. Individual agents may include 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

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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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Mainstream economics is the body of knowledge, theories, and models of economics, as taught by universities worldwide, that are generally accepted by economists as a basis for discussion. Also known as orthodox economics, it can be contrasted to heterodox economics, which encompasses various schools or approaches that are only accepted by a minority of economists.

The economics profession has traditionally been associated with neoclassical economics. However, this association has been challenged by prominent historians of economic thought including David Colander. They argue the current economic mainstream theories, such as game theory, behavioral economics, industrial organization, information economics, and the like, share very little common ground with the initial axioms of neoclassical economics. (Full article...)
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Piero Sraffa FBA (5 August 1898 – 3 September 1983) was an influential Italian political economist who served as lecturer of economics at the University of Cambridge. His book Production of Commodities by Means of Commodities is taken as founding the neo-Ricardian school of economics. (Full article...)
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This aims to be a complete article list of economics topics: (Full article...)
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Real business-cycle theory (RBC theory) is a class of new classical macroeconomics models in which business-cycle fluctuations are accounted for by real, in contrast to nominal, shocks. RBC theory sees business cycle fluctuations as the efficient response to exogenous changes in the real economic environment. That is, the level of national output necessarily maximizes expected utility.

In RBC models, business cycles are described as "real" because they reflect optimal adjustments by economic agents rather than failures of markets to clear. As a result, RBC theory suggests that governments should concentrate on long-term structural change rather than intervention through discretionary fiscal or monetary policy. These ideas are strongly associated with freshwater economics within the neoclassical economics tradition, particularly the Chicago School of Economics. (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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Pareto in the 1870s

Vilfredo Federico Damaso Pareto (/pəˈreɪtoʊ/; Italian: [paˈreːto]; born Wilfried Fritz Pareto; 15 July 1848 – 19 August 1923) was an Italian polymath, whose areas of interest included sociology, civil engineering, economics, political science, and philosophy. He made several important contributions to economics, particularly in the study of income distribution and in the analysis of individuals' choices, and was one of the minds behind the Lausanne School of economics. He was also responsible for popularising the use of the term elite in social analysis and contributed to elite theory. He has been described as "one of the last Renaissance scholars. Trained in physics and mathematics, he became a polymath whose genius radiated into nearly all other major fields of knowledge."

He introduced the concept of Pareto efficiency and helped develop the field of microeconomics. He was also the first to claim that income follows a Pareto distribution, which is a power law probability distribution. The Pareto principle was named after him, and it was built on his observations that 80% of the wealth in Italy belonged to about 20% of the population. He also contributed to the fields of mathematics and sociology. (Full article...)
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New Keynesian economics is a school of macroeconomics that seeks to provide explicit microeconomic foundations for Keynesian economics. It emerged in the late 1970s and 1980s as a response to criticisms raised by proponents of new classical macroeconomics, particularly the emphasis on rational expectations and the Lucas critique.

New Keynesian models typically incorporate elements of imperfect competition and nominal rigidities—such as sticky prices and sticky wages—to explain why markets may not always clear and why monetary policy can have real short-term effects. These features distinguish the New Keynesian framework from earlier Keynesian approaches while preserving the central insight that aggregate demand plays a crucial role in economic fluctuations. (Full article...)
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Mutualism is an anarchist school of thought and economic theory that advocates for workers' control of the means of production, a free market made up of individual artisans, sole proprietorships and workers' cooperatives, and occupation and use property rights. As proponents of the labour theory of value and labour theory of property, mutualists oppose all forms of economic rent, profit and non-nominal interest, which they see as relying on the exploitation of labour. Mutualists seek to construct an economy without capital accumulation or concentration of land ownership. They also encourage the establishment of workers' self-management, which they propose could be supported through the issuance of mutual credit by mutual banks, with the aim of creating a federal society.

Mutualism has its roots in the utopian socialism of Robert Owen and Charles Fourier. It first developed a practical expression in Josiah Warren's community experiments in the United States, which he established according to the principles of equitable commerce based on a system of labor notes. Mutualism was first formulated into a comprehensive economic theory by the French anarchist Pierre-Joseph Proudhon, who proposed the abolition of unequal exchange and the establishment of a new economic system based on reciprocity. In order to establish such a system, he proposed the creation of a "People's Bank" that could issue mutual credit to workers and eventually replace the state; although his own attempts to establish such a system were foiled by the 1851 French coup d'état. (Full article...)
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Leontief in 1973

Wassily Wassilyevich Leontief (Russian: Васи́лий Васи́льевич Лео́нтьев; August 5, 1905 – February 5, 1999) was a Soviet-American economist known for his research on input–output analysis and how changes in one economic sector may affect other sectors.

Leontief was awarded the Nobel Memorial Prize in Economic Sciences in 1973, and four of his doctoral students have also been awarded the prize (Paul Samuelson 1970, Robert Solow 1987, Vernon L. Smith 2002, Thomas Schelling 2005). (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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Richer countries tend to be happier than poorer countries (observations are lined up around an upward-sloping trend), and richer people within countries tend to be happier than poorer people in the same countries (arrows are consistently pointing northeast).

The economics of happiness or happiness economics is the theoretical, qualitative and quantitative study of happiness and quality of life, including positive and negative affects, well-being, life satisfaction and related concepts – typically tying economics more closely than usual with other social sciences, like sociology and psychology, as well as physical health. It typically treats subjective happiness-related measures, as well as more objective quality of life indices, rather than wealth, income or profit, as something to be maximized.

The field has grown substantially since the late 20th century, for example by the development of methods, surveys and indices to measure happiness and related concepts, as well as quality of life. Happiness findings have been described as a challenge to the theory and practice of economics. Nevertheless, furthering gross national happiness, as well as a specified Index to measure it, has been adopted explicitly in the Constitution of Bhutan in 2008, to guide its economic governance. (Full article...)
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The American School, also known as the National System, represents three different yet related constructs in politics, policy and philosophy. The policy existed from the 1790s to the 1970s, waxing and waning in actual degrees and details of implementation. Historian Michael Lind describes it as a coherent applied economic philosophy with logical and conceptual relationships with other economic ideas.

It is the macroeconomic philosophy that dominated United States national policies from the time of the American Civil War until the mid-20th century. Closely related to mercantilism, it can be seen as contrary to classical economics. It consisted of these three core policies:
1. Protecting industry through selective high tariffs (especially 1861–1932).
2. Government investments in infrastructure creating targeted internal improvements (especially in transportation).
3. A national bank with policies that promote the growth of productive enterprises rather than speculation.
(Full article...)
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Tinbergen in 1982

Jan Tinbergen (/ˈtɪnbɜːrɡən/ TIN-bur-gən, Dutch: [jɑn ˈtɪmbɛrɣə(n)]; 12 April 1903 – 9 June 1994) was a Dutch economist who was awarded the first Nobel Memorial Prize in Economic Sciences in 1969, which he shared with Ragnar Frisch for having developed and applied dynamic models for the analysis of economic processes. He is widely considered to be one of the most influential economists of the 20th century and one of the founding fathers of econometrics.

His important contributions to econometrics include the development of the first macroeconometric models, the solution of the identification problem, and the understanding of dynamic models. Tinbergen was a founding trustee of Economists for Peace and Security. In 1945, he founded the Bureau for Economic Policy Analysis (CPB) and was the agency's first director. (Full article...)
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A mixed economy is an economic system that includes both elements associated with capitalism, such as private businesses, and with socialism, such as nationalized government services.

More specifically, a mixed economy may be variously defined as an economic system blending elements of a market economy with elements of a planned economy, markets with state interventionism, or private enterprise with public enterprise. Common to all mixed economies is a combination of free-market principles and principles of socialism. Alternatively, a mixed economy can refer to a reformist transitionary phase to a socialist economy that allows a substantial role for private enterprise and contracting within a dominant economic framework of public ownership. This can extend to a Soviet-type planned economy that has been reformed to incorporate a greater role for markets in the allocation of factors of production. (Full article...)
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Stiglitz in 2019

Joseph Eugene Stiglitz (/ˈstɪɡlɪts/; born February 9, 1943) is an American New Keynesian economist, a public policy analyst, political activist, and a professor at Columbia University. He is a recipient of the Nobel Memorial Prize in Economic Sciences (2001) and the John Bates Clark Medal (1979). He is a former senior vice president and chief economist of the World Bank. He is also a former member and chairman of the U.S. Council of Economic Advisers. He is known for his support for the Georgist public finance theory and for his critical view of the management of globalization, of laissez-faire economists (whom he calls "free-market fundamentalists"), and of international institutions such as the International Monetary Fund and the World Bank.

In 2000, Stiglitz founded the Initiative for Policy Dialogue (IPD), a think tank on international development based at Columbia University. He has been a member of the Columbia faculty since 2001 and received the university's highest academic rank (university professor) in 2003. He was the founding chair of the university's Committee on Global Thought. He also chairs the University of Manchester's Brooks World Poverty Institute. He was a member of the Pontifical Academy of Social Sciences. In 2009, the President of the United Nations General Assembly Miguel d'Escoto Brockmann, appointed Stiglitz as the chairman of the U.N. Commission on Reforms of the International Monetary and Financial System, where he oversaw suggested proposals and commissioned a report on reforming the international monetary and financial system. He served as the chair of the international Commission on the Measurement of Economic Performance and Social Progress, appointed by the French President Sarkozy, which issued its report in 2010, Mismeasuring our Lives: Why GDP doesn't add up, and currently serves as co-chair of its successor, the High Level Expert Group on the Measurement of Economic Performance and Social Progress. From 2011 to 2014, Stiglitz was the president of the International Economic Association (IEA). He presided over the organization of the IEA triennial world congress held near the Dead Sea in Jordan in June 2014. (Full article...)
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Knut Wicksell, Swedish economist. Important source of inspiration for John Maynard Keynes and the Stockholm School.

The Stockholm School (Swedish: Stockholmsskolan) is a school of economic thought. It refers to a loosely organized group of Swedish economists that worked together, in Stockholm, Sweden primarily in the 1930s.

The Stockholm School had come to the same conclusions about theories of demand and supply as John Maynard Keynes. Like Keynes, they were inspired by the works of Knut Wicksell, a Swedish economist active in the early years of the twentieth century. (Full article...)
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Friedrich August von Hayek (8 May 1899 – 23 March 1992) was an Austrian economist 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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Microeconomics analyzes the market mechanisms that enable buyers and sellers to establish relative prices among goods and services. Shown is a marketplace in Delhi.

Microeconomics is a branch of economics that studies the behavior of individuals and firms in making decisions regarding the allocation of scarce resources and the interactions among these individuals and firms. Microeconomics focuses on the study of individual markets, sectors, or industries as opposed to the economy as a whole, which is studied in macroeconomics.

One goal of microeconomics is to analyze the market mechanisms that establish relative prices among goods and services and allocate limited resources among alternative uses. Microeconomics shows conditions under which free markets lead to desirable allocations. It also analyzes market failure, in which markets fail to produce efficient outcomes. (Full article...)
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Francis Ysidro Edgeworth (8 February 1845 – 13 February 1926) was an Anglo-Irish philosopher and political economist who made significant contributions to the methods of statistics during the 1880s. From 1891 onward, he was appointed the founding editor of The Economic Journal. (Full article...)
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Lucas in 1996

Robert Emerson Lucas Jr. (September 15, 1937 – May 15, 2023) was an American economist at the University of Chicago. Widely regarded as the central figure in the development of the new classical approach to macroeconomics, he received the Nobel Memorial Prize in Economic Sciences in 1995 "for having developed and applied the hypothesis of rational expectations, and thereby having transformed macroeconomic analysis and deepened our understanding of economic policy". N. Gregory Mankiw characterized him as "the most influential macroeconomist of the last quarter of the 20th century". In 2020, he ranked as the 10th most cited economist in the world. (Full article...)
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The first issue of Ms. 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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Becker in 2008

Gary Stanley Becker (/ˈbɛkər/; December 2, 1930 – May 3, 2014) was an American economist who received the 1992 Nobel Memorial Prize in Economic Sciences. He was a professor of economics and sociology at the University of Chicago, and was a leader of the third generation of the Chicago school of economics.

Becker was awarded the Nobel Memorial Prize in Economic Sciences in 1992 and received the United States Presidential Medal of Freedom in 2007. A 2011 survey of economics professors named Becker their favorite living economist over the age of 60, followed by Kenneth Arrow and Robert Solow. Economist Justin Wolfers called him "the most important social scientist in the past 50 years." (Full article...)
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Myrdal in 1964

Karl Gunnar Myrdal (/ˈmɜːrdɑːl, ˈmɪər-/ MUR-dahl, MEER-; Swedish: [ˈɡɵ̌nːar ˈmy̌ːɖɑːl]; 6 December 1898 – 17 May 1987) was a Swedish economist and sociologist. In 1974, he received the Nobel Memorial Prize in Economic Sciences along with Friedrich Hayek for "their pioneering work in the theory of money and economic fluctuations and for their penetrating analysis of the interdependence of economic, social and institutional phenomena." When his wife, Alva Myrdal, received the Nobel Peace Prize in 1982, they became the fourth ever married couple to have won Nobel Prizes, and the first and only to win independent of each other (versus a shared Nobel Prize by scientist spouses).

Myrdal is best known in the United States for his study of race relations, which culminated in his 1944 book An American Dilemma: The Negro Problem and Modern Democracy. The study was influential in the 1954 landmark U.S. Supreme Court decision Brown v. Board of Education. In Sweden, his work and political influence were important to the establishment of the Folkhemmet and the welfare state. (Full article...)

Did you know...

... 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 environmental economist V. Kerry Smith has been described as a "Renaissance Man of Economics"?
... that the 1983 Spanish floods were the most economically damaging in Spain until the 2024 Spanish floods?
... that Michael Kremer's O-ring theory of economic development was inspired by his forgetting to purchase toilet paper for a training session?
... that Celine-Marie Pascale's work focuses on how race and class impact the way "business practices and government policies create, normalize and entrench economic struggles" to benefit the wealthy?
... that when the COVID-19 pandemic began, Masyita Crystallin was instructed by the Indonesian finance minister to study the Spanish flu to help formulate unconventional economic policies?

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Selected images

Image 1The U.S. unemployment rate from 1990 to 2022 (from Economics)
Image 2John Maynard Keynes, who is considered the "father of macroeconomics" (from Economics)
Image 3The Marxist critique of political economy comes from the work of German philosopher Karl Marx.
Image 4The 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 5An example production–possibility frontier with illustrative points marked (from Economics)
Image 6A basic illustration of a business cycle (from Economics)
Image 7A map showing the main trade routes for goods within late medieval Europe (from Economics)
Image 8São Paulo Stock Exchange in Brazil, an electronic trading network that brings together buyers and sellers through an electronic trading platform
Image 9A 1638 painting of a French seaport during the heyday of mercantilism
Image 10Pollution 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 11An environmental scientist sampling water
Image 12The circulation of money in an economy in a macroeconomic model. In this model, the use of natural resources and the generation of waste, such as greenhouse gases, is not included. (from Economics)
Image 13The publication of Adam Smith's The Wealth of Nations in 1776 is considered to be the first formalisation of economic thought.
Image 14Milton Friedman (from Economics)
Image 15Economists study trade, production, and consumption decisions, including those that occur in a traditional marketplace.
Image 16List of countries by gross domestic product (PPP) per capita in April 2022 (from Economics)
Image 17Median income by country (from Economics)

In the news

16 April 2026 – Venezuela and the International Monetary Fund: The International Monetary Fund and the World Bank restore official relations with Venezuela and recognize the administration of acting president Delcy Rodríguez, enabling engagement on economic policy and potential financial assistance. (AFP via France 24)
10 April 2026 – Economic impact of the 2026 Iran war: The parliament of South Korea approves a supplementary budget worth ₩26.2 trillion (US$17.7 billion) to address the economic effects of the war, which includes cash assistance to 35 million South Koreans. (AA)
9 April 2026 – Mining in Venezuela: Venezuela's National Assembly approves a reform of mining laws that allows greater private investment in the country's mineral sector, with the bill advancing to constitutional review. The measure forms part of broader economic changes aimed at increasing foreign participation in natural resource industries. (Le Monde)
9 April 2026 – Cuba–Russia relations, 2026 Cuban crisis: Russian deputy foreign minister Sergei Ryabkov meets with Cuban president Miguel Díaz-Canel in Havana to discuss bilateral relations amid ongoing tensions between Cuba and the U.S. over energy and economic measures, and following the recent arrival of a Russian oil shipment to Cuba despite U.S. restrictions. (AFP via Daily Sun)
30 March 2026 – Middle Eastern crisis: Israeli leaders announce the "completion phase" of war and order the military to strike "economic" targets in Iran to damage the Iranian economy. (The Times of Israel)
23 March 2026 – Climate crisis: In its annual State of the Global Climate report, the World Meteorological Organization states that Earth's energy imbalance and ocean heat content reached record levels in 2025, driven by rising greenhouse gas emissions. (AFP via CNA)