Social choice theory | Wikipedia Easy Search

This article has an unclear citation style. The references used may be made clearer with a different or consistent style of citation and footnoting. (April 2021) (Learn how and when to remove this template message)

Economics
Part of a series on
History Outline Index
Branches and classifications Applied Econometrics Heterodox International Micro / Macro Mainstream Mathematical Methodology Political JEL classification codes
Concepts, theory and techniques Economic systems Economic growth Market National accounting Experimental economics Computational economics Game theory Operations research Middle income trap Industrial complex
By application Agricultural Behavioral Business Cultural Demographic Development Digitization Ecological Education Engineering Environmental Evolutionary Expeditionary Feminist Financial Geographical Happiness Health Historical Humanistic Industrial organization Information Institutional Knowledge Labour Law Managerial Monetary Natural resource Organizational Participation Personnel Planning Policy Public Public choice / Social choice theory Regional Rural Service Socio Sociological Solidarity Statistics Urban Welfare
Notable economists Quesnay Smith Malthus Say Ricardo von Thünen List Bastiat Cournot Mill Gossen Marx Walras Jevons George Menger Marshall Edgeworth Clark Pareto von Böhm-Bawerk von Wieser Veblen Fisher Pigou Heckscher von Mises Schumpeter Keynes Knight Polanyi Frisch Sraffa Myrdal Hayek Kalecki Röpke Kuznets Robinson von Neumann Hicks Lange Leontief Galbraith Koopmans Schumacher Friedman Samuelson Simon Buchanan Arrow Baumol Solow Rothbard Greenspan Sowell Becker Ostrom Sen Lucas Stiglitz Thaler Hoppe Krugman Piketty more
Lists Glossary Economists Publications (journals) Schools
Business portal Money portal
v t e

Politics
Part of the Politics series
Outline Index Category
Primary topics Outline of political science Index of politics articles Politics by country Politics by subdivision Political economy Political history Political history of the world Political philosophy
Political systems Anarchy City-state Collective leadership Democracy Dictatorship Directorial Federacy Feudalism Hybrid regime Meritocracy Monarchy Parliamentary Presidential Republic Semi-parliamentary Semi-presidential Theocracy
Academic disciplines Political science (political scientists) International relations (theory) Comparative politics Election science Political analysis Political theory Policy studies Political psychology Political sociology
Public administration Bureaucracy (street-level) Technocracy Adhocracy Service (Public / Civil)
Policy Public policy (doctrine) Domestic policy Foreign policy Civil society Public interest
Government branches Separation of powers Legislature Executive Judiciary Election commission
Related topics Sovereignty Polity / State (Politeia / Nation / Civilization / Territorial / Rump / Quasi / Warlord) Theories of political behavior Biology and political orientation Political organisations Critique of political economy
Subseries Electoral systems Elections voting Unitarism Federalism Government (forms / Governance) Ideology Culture Political campaigning Political parties
Politics portal
v t e

Social choice theory or social choice is a branch of economics that analyzes mechanisms and procedures for collective decisions.^[1] Social choice incorporates insights from welfare economics, mathematics, and political science to find the best ways to combine individual opinions, preferences, or beliefs into a single coherent measure of well-being.

Whereas decision theory is concerned with individuals making choices based on their preferences, social choice theory is concerned with how to translate the preferences of individuals into the preferences of a group. A non-theoretical example of a collective decision is enacting a law or set of laws under a constitution. Another example is voting, where individual preferences over candidates are collected to elect a person that best represents the group's preferences.^[2]

It is methodologically individualistic, in that it aggregates preferences and behaviors of individual members of society. Using elements of formal logic for generality, analysis proceeds from a set of seemingly reasonable axioms of social choice to form a social welfare function (or constitution).^[3]

^ Amartya Sen (2008). "Social Choice,". The New Palgrave Dictionary of Economics, 2nd Edition, Abstract & TOC.
^ Zwicker, William S.; Moulin, Herve (2016), Brandt, Felix; Conitzer, Vincent; Endriss, Ulle; Lang, Jerome (eds.), "Introduction to the Theory of Voting", Handbook of Computational Social Choice, Cambridge: Cambridge University Press, pp. 23–56, doi:10.1017/cbo9781107446984.003, ISBN 978-1-107-44698-4, retrieved 2021-12-24
^ For example, in Kenneth J. Arrow (1951). Social Choice and Individual Values, New York: Wiley, ch. II, section 2, A Notation for Preferences and Choice, and ch. III, "The Social Welfare Function".