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 factors affecting it: factors of production, such as labour, capital, land, and enterprise, inflation, economic growth, and public policies that have impact on these elements. It also seeks to analyse and describe the global economy. (Full article...)
Selected general articles
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Thomas Robert Malthus FRS (/ˈmælθəs/; 13/14 February 1766 – 29 December 1834) was an English economist, cleric, and scholar influential in the fields of political economy and demography.
In his 1798 book An Essay on the Principle of Population, Malthus observed that an increase in a nation's food production improved the well-being of the population, but the improvement was temporary because it led to population growth, which in turn restored the original per capita production level. In other words, humans had a propensity to use abundance for population growth rather than for maintaining a high standard of living, a view and stance that has become known as the "Malthusian trap" or the "Malthusian spectre". Populations had a tendency to grow until the lower class suffered hardship, want and greater susceptibility to war, famine, and disease, a pessimistic view that is sometimes referred to as a Malthusian catastrophe. Malthus wrote in opposition to the popular view in 18th-century Europe that saw society as improving and in principle as perfectible. (Full article...) -
John Stuart Mill (20 May 1806 – 7 May 1873) was an English philosopher, political economist, politician and civil servant. One of the most influential thinkers in the history of liberalism, he contributed widely to social theory, political theory, and political economy. Dubbed "the most influential English-speaking philosopher of the nineteenth century" by the Stanford Encyclopedia of Philosophy, he conceived of liberty as justifying the freedom of the individual in opposition to unlimited state and social control.
Mill was a proponent of utilitarianism, an ethical theory developed by his predecessor Jeremy Bentham. He contributed to the investigation of scientific methodology, though his knowledge of the topic was based on the writings of others, notably William Whewell, John Herschel, and Auguste Comte, and research carried out for Mill by Alexander Bain. He engaged in written debate with Whewell. (Full article...) -
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:- Protecting industry through selective high tariffs (especially 1861–1932) and through subsidies (especially 1932–1970).
- Government investments in infrastructure creating targeted internal improvements (especially in transportation).
- A national bank with policies that promote the growth of productive enterprises rather than speculation.
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Complexity economics is the application of complexity science to the problems of economics. It relaxes several common assumptions in economics, including general equilibrium theory. While it does not reject the existence of an equilibrium, it sees such equilibria as "a special case of nonequilibrium", and as an emergent property resulting from complex interactions between economic agents. The complexity science approach has also been applied to computational economics. (Full article...)
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Richard H. Thaler (/ˈθeɪlər/; born September 12, 1945) is an American economist and the Charles R. Walgreen Distinguished Service Professor of Behavioral Science and Economics at the University of Chicago Booth School of Business. In 2015, Thaler was president of the American Economic Association.
Thaler is a theorist in behavioral economics who has collaborated with Daniel Kahneman, Amos Tversky, and others in further defining that field. In 2018, he was elected a member in the National Academy of Sciences. (Full article...) -
Slogan in Bhutan about gross national happiness in Thimphu's School of Traditional Arts.
Buddhist economics is a spiritual and philosophical approach to the study of economics. It examines the psychology of the human mind and the emotions that direct economic activity, in particular concepts such as anxiety, aspirations and self-actualization principles. In the view of its proponents, Buddhist economics aims to clear the confusion about what is harmful and what is beneficial in the range of human activities involving the production and consumption of goods and services, ultimately trying to make human beings ethically mature. The ideology's stated purpose is to "find a middle way between a purely mundane society and an immobile, conventional society."
The most fundamental feature of Buddhist economics is seeing "people interdependent with one another and with Nature." (Full article...) -
Amartya Kumar Sen (Bengali pronunciation: [ˈɔmortːo ˈʃen]; born 3 November 1933) is an Indian economist and philosopher. Sen has taught and worked in England and the United States since 1972. In 1998, Sen received the Nobel Memorial Prize in Economic Sciences for his contributions to welfare economics. He has also made major scholarly contributions to social choice theory, economic and social justice, economic theories of famines, decision theory, development economics, public health, and the measures of well-being of countries.
Sen is currently the Thomas W. Lamont University Professor, and Professor of Economics and Philosophy at Harvard University. He previously served as Master of Trinity College at the University of Cambridge. In 1999, he received India's highest civilian honour, Bharat Ratna, for his contribution to welfare economics. The German Publishers and Booksellers Association awarded him the 2020 Peace Prize of the German Book Trade for his pioneering scholarship addressing issues of global justice and combating social inequality in education and healthcare. (Full article...) -
Neoclassical economics is an approach to economics in which the production, consumption, and valuation (pricing) of goods and services are observed as driven by the supply and demand model. According to this line of thought, the value of a good or service is determined through a hypothetical maximization of utility by income-constrained individuals and of profits by firms facing production costs and employing available information and factors of production. This approach has often been justified by appealing to rational choice theory.
Neoclassical economics is the dominant approach to microeconomics and, together with Keynesian economics, formed the neoclassical synthesis which dominated mainstream economics as "neo-Keynesian economics" from the 1950s onward. (Full article...) -
Kenneth Joseph Arrow (August 23, 1921 – February 21, 2017) was an American economist, mathematician, writer, and political theorist. Along with John Hicks, he won the Nobel Memorial Prize in Economic Sciences in 1972.
In economics, Arrow was a major figure in post-World War II neoclassical economic theory. Many of his former graduate students have gone on to win the Nobel Memorial Prize themselves. His contributions to social choice theory, notably "Arrow's impossibility theorem", and his work on general equilibrium analysis are significant. He has also provided foundational work in many other areas of economics, including endogenous growth theory and the economics of information. (Full article...) -
John Maynard Keynes, 1st Baron Keynes CB, FBA (/keɪnz/ KAYNZ; 5 June 1883 – 21 April 1946), was an English economist and philosopher whose ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments. Originally trained in mathematics, he built on and greatly refined earlier work on the causes of business cycles. One of the most influential economists of the 20th century, he produced writings that are the basis for the school of thought known as Keynesian economics, and its various offshoots. His ideas, reformulated as New Keynesianism, are fundamental to mainstream macroeconomics. He is known as the "father of macroeconomics".
During the Great Depression of the 1930s, Keynes spearheaded a revolution in economic thinking, challenging the ideas of neoclassical economics that held that free markets would, in the short to medium term, automatically provide full employment, as long as workers were flexible in their wage demands. He argued that aggregate demand (total spending in the economy) determined the overall level of economic activity, and that inadequate aggregate demand could lead to prolonged periods of high unemployment, and since wages and labour costs are rigid downwards the economy will not automatically rebound to full employment. Keynes advocated the use of fiscal and monetary policies to mitigate the adverse effects of economic recessions and depressions. He detailed these ideas in his magnum opus, The General Theory of Employment, Interest and Money, published in early 1936. By the late 1930s, leading Western economies had begun adopting Keynes's policy recommendations. Almost all capitalist governments had done so by the end of the two decades following Keynes's death in 1946. As a leader of the British delegation, Keynes participated in the design of the international economic institutions established after the end of World War II but was overruled by the American delegation on several aspects. (Full article...) -
The neoclassical synthesis (NCS), or neoclassical–Keynesian synthesis is an academic movement and paradigm in economics that worked towards reconciling the macroeconomic thought of John Maynard Keynes in his book The General Theory of Employment, Interest and Money (1936) with neoclassical economics.
The neoclassical synthesis is a macroeconomic theory that emerged in the mid-20th century, combining the ideas of neoclassical economics with Keynesian economics. The synthesis was an attempt to reconcile the apparent differences between the two schools of thought and create a more comprehensive theory of macroeconomics. (Full article...) -
John Bates Clark (January 26, 1847 – March 21, 1938) was an American neoclassical economist. He was one of the pioneers of the marginalist revolution and opponent to the Institutionalist school of economics, and spent most of his career as professor at Columbia University. (Full article...) -
Joseph Alois Schumpeter (German: [ˈʃʊmpeːtɐ]; February 8, 1883 – January 8, 1950) was an Austrian political economist. He served briefly as Finance Minister of Austria in 1919. In 1932, he emigrated to the United States to become a professor at Harvard University, where he remained until the end of his career, and in 1939 obtained American citizenship.
Schumpeter was one of the most influential economists of the early 20th century, and popularized the term "creative destruction", coined by Werner Sombart. (Full article...) -
James McGill Buchanan Jr. (/bjuːˈkænən/; October 3, 1919 – January 9, 2013) was an American economist known for his work on public choice theory originally outlined in his most famous work, The Calculus of Consent, co-authored with Gordon Tullock in 1962. He continued to develop the theory, eventually receiving the Nobel Memorial Prize in Economic Sciences in 1986. Buchanan's work initiated research on how politicians' and bureaucrats' self-interest, utility maximization, and other non-wealth-maximizing considerations affect their decision-making. He was a member of the Board of Advisors of The Independent Institute as well as of the Institute of Economic Affairs, a member of the Mont Pelerin Society (MPS) and MPS president from 1984 to 1986, a Distinguished Senior Fellow of the Cato Institute, and professor at George Mason University. (Full article...) -
Friedrich Freiherr von Wieser (German: [ˈviːzɐ]; 10 July 1851 – 22 July 1926) was an early (so-called "first generation") economist of the Austrian School of economics. Born in Vienna, the son of Privy Councillor Leopold von Wieser, a high official in the war ministry, he first trained in sociology and law. In 1872, the year he took his degree, he encountered Austrian-school founder Carl Menger's Grundsätze and switched his interest to economic theory. Wieser held posts at the universities of Vienna and Prague until succeeding Menger in Vienna in 1903, where along with his brother-in-law Eugen von Böhm-Bawerk he shaped the next generation of Austrian economists including Ludwig von Mises, Friedrich Hayek and Joseph Schumpeter in the late 1890s and early 20th century. He was the Austrian Minister of Commerce from August 30, 1917, to November 11, 1918.
Wieser is renowned for two main works, Natural Value, which carefully details the alternative-cost doctrine and the theory of imputation; and his Social Economics (1914), an ambitious attempt to apply it to the real world. His explanation of marginal utility theory was decisive, at least terminologically. It was his term Grenznutzen (building on von Thünen's Grenzkosten) that developed into the standard term "marginal utility", not William Stanley Jevons's "final degree of utility" or Menger's "value". His use of the modifier "natural" indicates that he regarded value as a "natural category" that would pertain to any society, no matter what institutions of property had been established. (Full article...) -
From a legal point of view, a contract is an institutional arrangement for the way in which resources flow, which defines the various relationships between the parties to a transaction or limits the rights and obligations of the parties.
From an economic perspective, contract theory studies how economic actors can and do construct contractual arrangements, generally in the presence of information asymmetry. Because of its connections with both agency and incentives, contract theory is often categorized within a field known as law and economics. One prominent application of it is the design of optimal schemes of managerial compensation. In the field of economics, the first formal treatment of this topic was given by Kenneth Arrow in the 1960s. In 2016, Oliver Hart and Bengt R. Holmström both received the Nobel Memorial Prize in Economic Sciences for their work on contract theory, covering many topics from CEO pay to privatizations. Holmström focused more on the connection between incentives and risk, while Hart on the unpredictability of the future that creates holes in contracts. (Full article...) -
Marie-Esprit-Léon Walras (French: [valʁas]; 16 December 1834 – 5 January 1910) was a French mathematical economist and Georgist. He formulated the marginal theory of value (independently of William Stanley Jevons and Carl Menger) and pioneered the development of general equilibrium theory. Walras is best known for his book Éléments d'économie politique pure, a work that has contributed greatly to the mathematization of economics through the concept of general equilibrium. The definition of the role of the entrepreneur found in it was also taken up and amplified by Joseph Schumpeter.
For Walras, exchanges only take place after a Walrasian tâtonnement (French for "trial and error"), guided by the auctioneer, has made it possible to reach market equilibrium. It was the general equilibrium obtained from a single hypothesis, rarity, that led Joseph Schumpeter to consider him "the greatest of all economists". The notion of general equilibrium was very quickly adopted by major economists such as Vilfredo Pareto, Knut Wicksell and Gustav Cassel. John Hicks and Paul Samuelson used the Walrasian contribution in the elaboration of the neoclassical synthesis. For their part, Kenneth Arrow and Gérard Debreu, from the perspective of a logician and a mathematician, determined the conditions necessary for equilibrium. (Full article...) -
Eli Filip Heckscher (24 November 1879 – 23 December 1952) was a Swedish political economist and economic historian who was a professor at the Stockholm School of Economics.
He is known for the Heckscher–Ohlin theorem, an influential model of international trade that predicts that capital-abundant countries export capital-intensive goods, while labor-abundant countries export the labor-intensive goods. (Full article...) -
Physiocracy (French: physiocratie; from the Greek for "government of nature") is an economic theory developed by a group of 18th-century Age of Enlightenment French economists who believed that the wealth of nations derived solely from the value of "land agriculture" or "land development" and that agricultural products should be highly priced. Their theories originated in France and were most popular during the second half of the 18th century. Physiocracy became one of the first well-developed theories of economics.
François Quesnay (1694–1774), the marquis de Mirabeau (1715–1789) and Anne-Robert-Jacques Turgot (1727–1781) dominated the movement, which immediately preceded the first modern school, classical economics, which began with the publication of Adam Smith's The Wealth of Nations in 1776. (Full article...) -
The pluralism in economics movement is a campaign to change the teaching and research in economics towards more openness in its approaches, topics and standpoints it considers. The goal of the movement is to "reinvigorate the discipline ... [and bring] economics back into the service of society". Some have argued that economics had greater scientific pluralism in the past compared to the monist approach that is prevalent today. Pluralism encourages the inclusion of a wide variety of neoclassical and heterodox economic theories—including classical, Post-Keynesian, institutional, ecological, evolutionary, feminist, Marxist, and Austrian economics, stating that "each tradition of thought adds something unique and valuable to economic scholarship". (Full article...)
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Keynesian economics (/ˈkeɪnziən/ KAYN-zee-ən; sometimes Keynesianism, named after British economist John Maynard Keynes) are the various macroeconomic theories and models of how aggregate demand (total spending in the economy) strongly influences economic output and inflation. In the Keynesian view, aggregate demand does not necessarily equal the productive capacity of the economy. It is influenced by a host of factors that sometimes behave erratically and impact production, employment, and inflation.
Keynesian economists generally argue that aggregate demand is volatile and unstable and that, consequently, a market economy often experiences inefficient macroeconomic outcomes, including recessions when demand is too low and inflation when demand is too high. Further, they argue that these economic fluctuations can be mitigated by economic policy responses coordinated between government and central bank. In particular, fiscal policy actions taken by the government and monetary policy actions taken by the central bank, can help stabilize economic output, inflation, and unemployment over the business cycle. Keynesian economists generally advocate a regulated market economy – predominantly private sector, but with an active role for government intervention during recessions and depressions. (Full article...) -
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...) -
Behavioral economics is the study of the psychological, cognitive, emotional, cultural and social factors involved in the decisions of individuals or institutions, and how these decisions deviate from those implied by classical economic theory.
Behavioral economics is primarily concerned with the bounds of rationality of economic agents. Behavioral models typically integrate insights from psychology, neuroscience and microeconomic theory. The study of behavioral economics includes how market decisions are made and the mechanisms that drive public opinion. (Full article...) -
Henry George (September 2, 1839 – October 29, 1897) was an American political economist and journalist. His writing was immensely popular in 19th-century America and sparked several reform movements of the Progressive Era. He inspired the economic philosophy known as Georgism, the belief that people should own the value they produce themselves, but that the economic value of land (including natural resources) should belong equally to all members of society. George famously argued that a single tax on land values would create a more productive and just society.
His most famous work, Progress and Poverty (1879), sold millions of copies worldwide. The treatise investigates the paradox of increasing inequality and poverty amid economic and technological progress, the business cycle with its cyclic nature of industrialized economies, and the use of rent capture such as land value taxation and other anti-monopoly reforms as a remedy for these and other social problems. (Full article...) -
Thomas Piketty (French: [tɔmɑ pikɛti]; born 7 May 1971) is a French economist who is a professor of economics at the School for Advanced Studies in the Social Sciences, associate chair at the Paris School of Economics (PSE) and Centennial Professor of Economics in the International Inequalities Institute at the London School of Economics (LSE).
Piketty's work focuses on public economics, in particular income and wealth inequality. He is the author of the best-selling book Capital in the Twenty-First Century (2013), which emphasises the themes of his work on wealth concentrations and distribution over the past 250 years. The book argues that the rate of capital return in developed countries is persistently greater than the rate of economic growth, and that this will cause wealth inequality to increase in the future. Piketty proposes improving the education systems and considers diffusion of knowledge, diffusion of skills, diffusion of idea of productivity as the main mechanism that will lead to lower inequality. In 2019, his book Capital and Ideology was published, which focuses on income inequality in various societies in history. His 2022 A Brief History of Equality is a much shorter book about wealth redistribution intended for a target audience of citizens instead of economists. (Full article...)
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Did you know...
- ... that the Canadian journalist Bernard Descôteaux is credited with the economic revival of the independent newspaper Le Devoir?
- ... that Sumitro Djojohadikusumo expected the majority of the beneficiaries of his economic policy might turn out to be "parasites"?
- ... that people are robbing Lebanese banks to get their own money back?
- ... that Michael Kremer's O-ring theory of economic development was inspired by his forgetting to purchase toilet paper for a training session?
- ... that economist Nisvan Erkal's research showed that China's one-child policy created children who lacked qualities important for social and economic success?
- ... that in a study for UNICEF, Reginald Green found that more than two million children under the age of five had died in Angola and Mozambique due to the South African apartheid regime's economic policies?
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Selected images
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A 1638 painting of a French seaport during the heyday of mercantilism -
The 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). -
The publication of Adam Smith's The Wealth of Nations in 1776 is considered to be the first formalisation of economic thought. -
The U.S. unemployment rate from 1990 to 2022 (from Economics) -
Pollution 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. -
Economists study trade, production, and consumption decisions, including those that occur in a traditional marketplace -
São Paulo Stock Exchange in Brazil, an electronic trading network that brings together buyers and sellers through an electronic trading platform -
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A basic illustration of a business cycle (from Economics) -
An environmental scientist sampling water -
John Maynard Keynes, a key economics theorist (from Economics) -
List of countries by gross domestic product (PPP) per capita in April 2022 (from Economics) -
An example production–possibility frontier with illustrative points marked (from Economics)
_per_capita_in_2022_by_IMF.png)
In the news
- 1 October 2024 –
- Three people are killed and fifteen others are injured in a mass stabbing at a supermarket in Songjiang district, Shanghai, China. Police arrest a 37-year-old man at the scene, adding that the man had come to Shanghai in order to "vent his anger due to a personal economic dispute". (Reuters) (BBC News)
- 25 September 2024 – Pakistani economic crisis
- The International Monetary Fund approves a $7 billion loan for Pakistan to help its economy, with $1 billion being disbursed immediately and the rest in instalments over 37 months. (AP)
- 24 September 2024 –
- Argentine President Javier Milei proposes an "agenda of freedom" with economic, social, and foreign policies that directly contradict the United Nations' "Pact for the Future", which he calls a model to "repress, restrict and curtail" humanity's freedom and ineffective at preventing conflicts. (Reuters)
- 12 September 2024 – Russian invasion of Ukraine
- Ukraine accuses Russia of conducting missile strikes on a Saint Kitts and Nevis-flagged bulk carrier carrying grain to Egypt in the exclusive economic zone of Romania in the Black Sea. No casualties are reported. (Reuters)
- 2 September 2024 – Israel–Hamas war protests
- Histadrut, Israel's national trade union center, begins a one-day general strike to protest against the Netanyahu government's failure to negotiate a ceasefire and hostage deal. The strike is later ordered to end prematurely by a Tel Aviv labor court, claiming the strike was illegally political in nature rather than economic. (BBC) (The Guardian)
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