Natural Rate of Unemployment
Quick Definition
The unemployment rate that exists when the economy is at full employment, consisting only of frictional and structural unemployment.
Key Takeaways
- The unemployment rate at which inflation remains stable
- Includes only frictional and structural unemployment — no cyclical component
- Pushing below this rate generates accelerating inflation (Phillips Curve)
- Not fixed — changes with demographics, technology, and labor market policies
What Is Natural Rate of Unemployment?
The natural rate of unemployment (also known as NAIRU — Non-Accelerating Inflation Rate of Unemployment) is the level of unemployment consistent with stable inflation. At this rate, cyclical unemployment is zero, and only frictional unemployment (workers between jobs) and structural unemployment (skills or geographic mismatches) persist. The concept, introduced by Milton Friedman and Edmund Phelps, suggests that pushing unemployment below the natural rate through stimulative policy will only generate accelerating inflation without lasting employment gains. The natural rate is not fixed — it shifts over time due to changes in demographics, labor market institutions, technology, and social policies. In the U.S., it is currently estimated at approximately 4.0-4.5%.
Natural Rate of Unemployment Example
- 1When U.S. unemployment fell to 3.5% in 2019 — below the estimated natural rate of 4.4% — wages began rising faster.
- 2Europe's higher natural unemployment rate (around 6-7%) partly reflects stronger labor protections that reduce worker mobility.
- 3The natural rate declined in the late 1990s as technology improved job matching and labor market efficiency.
Related Terms
Full Employment
An economic condition where all available labor resources are being used efficiently, with unemployment at its natural rate.
Phillips Curve
An economic model showing an inverse relationship between unemployment and inflation, suggesting policymakers face a trade-off between the two.
Unemployment Rate
The percentage of the labor force that is jobless and actively seeking employment, a key indicator of economic health.
Inflation Target
A publicly announced goal for the rate of inflation that a central bank aims to achieve, typically around 2% in advanced economies.
Output Gap
The difference between an economy's actual GDP and its potential GDP, indicating whether the economy is operating above or below its sustainable capacity.
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.
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