Schools of Thought
New Classical Economics
Also Known As New Classical Macroeconomics
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New classical macroeconomics is a school built on neoclassical foundations that assumes economic agents form rational expectations and that markets clear continuously, so the economy tends to a unique full-employment equilibrium through price and wage adjustment. It emerged in the 1970s, led by Robert Lucas Jr., whose Lucas critique argued that Keynesian macro-econometric models lacked the microeconomic foundations needed to predict how agents would actually respond to a policy change, and it gave rise to real business cycle theory, developed by Finn Kydland and Edward Prescott, which explains recessions as responses to real productivity shocks rather than demand failures.
Facts
Start YearSources date the school's emergence to the 1970s rather than to a single founding year. Core TenetBecause agents form rational expectations and markets clear continuously, only unanticipated shocks have real effects; systematic, anticipated government demand-management policy cannot durably move output or employment away from its equilibrium path. 1 Cross-Tradition Connections
Associated Figures and Events
Lucas is widely credited as new classical macroeconomics' central architect through his 1972 rational expectations paper and the 1976 Lucas critique.
Associated With
Robert Lucas is counted, alongside Milton Friedman, among the economists who led the movement, and new classical economics inherited monetarism's skepticism of discretionary demand management.
Rejected Here
Why this is disputed. New classical economists blamed 1970s stagflation on Keynesian demand-management policy, and Robert Lucas's Lucas critique argues Keynesian macro-econometric models lack the microeconomic foundations needed to predict how agents actually respond to a policy change.
Why this is disputed. New Classical economists, Robert Lucas Jr. and Thomas Sargent chief among them, argued the synthesis' own theoretical foundations were fundamentally flawed because it lacked rational expectations, a critique the 1970s stagflation evidence appeared to vindicate.
Critiqued Here
Why this is disputed. Both schools share the rational-expectations toolkit; the live dispute is whether markets clear continuously through flexible prices (New Classical) or only gradually because of sticky prices and wages from imperfect competition (New Keynesian), a difference with directly opposed policy implications for whether stabilization policy can work.
Sources
1. Wikipedia
Wikimedia FoundationNew classical macroeconomicsQuote, New classical macroeconomics
At any one time, the economy is assumed to have a unique equilibrium at full employment or potential output achieved through price and wage adjustment.
1. Wikipedia
Wikimedia FoundationNew classical macroeconomics, Foundation, axioms and assumptionsView the Source 1. Wikipedia
1. Wikipedia
Wikimedia FoundationNew classical macroeconomics, article titleView the Source 1. Wikipedia
Wikimedia FoundationDebated With: Keynesian Economics, New classical macroeconomics, criticism of Keynesian modelsView the Source 1. Wikipedia
Wikimedia FoundationAssociated With: Monetarist Economics, New classical macroeconomics, key foundersView the Source 1. Wikipedia
Wikimedia FoundationAssociated Figures and Events: Robert Lucas Jr., Robert Lucas Jr., lead sectionQuote, Associated Figures and Events: Robert Lucas Jr., Robert Lucas Jr., lead section
Widely recognized as the central architect of new classical macroeconomics, he shaped how economists understand monetary policy and economic cycles from the 1970s onward.
1. Wikipedia
Wikimedia FoundationDebated With: New Keynesian Economics, New Keynesian economics, Market imperfectionsQuote, Debated With: New Keynesian Economics, New Keynesian economics, Market imperfections
New Keynesian analysis usually assumes a variety of market failures...whereas New Classical economists believed markets clear automatically.
1. Wikipedia
Wikimedia FoundationDebated With: Neoclassical Synthesis, Neoclassical synthesis, DeclineQuote, Debated With: Neoclassical Synthesis, Neoclassical synthesis, Decline
Critics like Lucas and Sargent argued that the doctrine on which they were based was fundamentally flawed.
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