Okun's Law
Quick Definition
An empirical relationship stating that for every 1% increase in unemployment above the natural rate, GDP falls approximately 2% below its potential.
Key Takeaways
- For every 1% rise in unemployment above natural rate, GDP falls roughly 2% below potential
- An empirical regularity, not a precise economic law
- The exact coefficient varies by country and time period (typically 1.5-2.5 for the U.S.)
- Used by policymakers to estimate the economic cost of unemployment
- Helps forecast how GDP growth translates into labor market changes
What Is Okun's Law?
Okun's Law, formulated by economist Arthur Okun in 1962, describes the empirical relationship between unemployment and economic output (GDP). The original observation suggested that for every 1 percentage point increase in unemployment above its natural rate, real GDP falls approximately 2-3% below its potential level. The relationship also works in reverse: GDP must grow faster than its trend rate to reduce unemployment. The exact coefficient varies by country and time period—in the modern U.S. economy, the ratio is estimated between 1.5 and 2.5. Okun's Law is not a precise law but a statistical regularity that holds reasonably well over time. It is used by policymakers and economists to estimate the output cost of unemployment and to forecast how economic growth translates into labor market improvements.
Okun's Law Example
- 1Using Okun's Law, economists estimated that the 4 percentage point rise in unemployment during the 2008 crisis corresponded to roughly 8% of lost GDP.
- 2With unemployment 1.5% above the natural rate, Okun's Law suggested the economy was operating approximately 3% below potential output.
- 3Policymakers used Okun's Law to estimate that GDP needed to grow at least 3% annually to meaningfully reduce the unemployment rate.
Related Terms
Unemployment Rate
The percentage of the labor force that is jobless and actively seeking employment, a key indicator of economic health.
GDP (Gross Domestic Product)
The total monetary value of all finished goods and services produced within a country's borders in a specific time period.
Natural Rate of Unemployment
The unemployment rate consistent with stable inflation, comprising frictional and structural unemployment but not cyclical unemployment.
Phillips Curve
An economic model showing an inverse relationship between unemployment and inflation, suggesting policymakers face a trade-off between the two.
Business Cycle
The recurring pattern of expansion and contraction in economic activity, typically measured by changes in real GDP and employment.
Federal Reserve (The Fed)
The central banking system of the United States, responsible for monetary policy, bank regulation, and financial stability.
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