Economic Theories

Economic theories are systematic frameworks that seek to explain how economies function, how resources are produced, distributed, and consumed, and how economic behavior relates to wider social institutions. Adam Smith’s classical economics emphasized the division of labor and market coordination, David Ricardo analyzed rent, wages, and comparative advantage, and Karl Marx offered a critique of capitalism based on surplus value, class relations, and crisis. Neoclassical theorists such as Alfred Marshall and Leon Walras modeled rational individuals and market equilibrium, while John Maynard Keynes argued that insufficient aggregate demand can leave economies in prolonged slumps and justify state intervention. Friedrich Hayek and Milton Friedman defended free markets and monetarism, and Joseph Schumpeter highlighted innovation and creative destruction. Institutional economists, including Thorstein Veblen and Douglass North, stressed habits, rules, and organizations. Sociologists such as Max Weber, Karl Polanyi, and Mark Granovetter criticized models that ignore culture and social embeddedness, and Herbert Simon and Daniel Kahneman challenged the assumption of full rationality. Feminist economists, such as Marilyn Waring, expose the neglect of unpaid work. Economic theories remain central to research on inequality, development, labor, markets, and public policy.