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Social Sciences
Economics
1962
Intermediate

Okun's Law

ΔY/Y=cβ(uu)\Delta Y/Y = c - \beta(u - u^*)

GDP growth and unemployment move inversely — roughly 2% output per 1% unemployment gap.

By Arthur Okun

Social Sciences
Okun's Law
1962 · Arthur Okun
Why it matters: Gives central banks a quick read on slack in the economy.

Discoverers: Arthur Okun (1962)

What does it mean?

GDP growth and unemployment move inversely — roughly 2% output per 1% unemployment gap.

Why should I care?

Gives central banks a quick read on slack in the economy.

Variables & Units

SymbolNameUnitMeaning
ΔY/YΔY/YOutput growthPercent
uuUnemploymentRate
uu*Natural rateNAIRU
ββOkun coefficient~2

Worked Example

Unemployment 1% above u* → output ~2% below potential.

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Okun's Law

ΔY/Y=cβ(uu)\Delta Y/Y = c - \beta(u - u^*)

Real-world impact

Global economy

Quantitative models shape markets and policy.

Photo: Unsplash — financial markets

GDP growth and unemployment move inversely — roughly 2% output per 1% unemployment gap.

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