Okun’s Law [OL]

Okun’s Law describes the empirical relationship between unemployment and economic output, specifically stating that for every 1 percentage point increase in unemployment above its natural rate, GDP falls by approximately 2-3 percentage points below its potential level. Named after economist Arthur Okun, this relationship helps policymakers understand how labor market conditions relate to overall economic performance. The law works because when unemployment rises, not only do fewer people work, but those who remain employed may work fewer hours, and productivity may decline due to reduced capacity utilization. For example, during the 2008-2009 recession, U.S. unemployment rose from 5% to 10% (a 5 percentage point increase), while GDP fell by approximately 4% – roughly consistent with Okun’s Law predictions. The relationship varies across countries and time periods due to differences in labor market institutions, productivity growth, and economic structure. Modern versions of Okun’s Law account for these variations and are used by central banks and government agencies for economic forecasting and policy planning. The Federal Reserve incorporates Okun’s Law into its economic models to assess labor market slack and its implications for monetary policy decisions.