Real wage rigidity describes a situation in which real wages—nominal wages divided by the price level—fail to fall (or rise) by the amount that would clear the labor market when supply and demand shift. It is distinct from nominal wage rigidity, where the sticky variable is the money wage itself. Both forms matter for macroeconomic policy, but real rigidity has stronger implications for the persistence of involuntary unemployment.
Economists have offered several microfoundations:
- Efficiency wage theory (Shapiro and Stiglitz, 1984): firms pay above-market wages to deter shirking, reduce turnover, or attract better applicants, so wages do not fall even when unemployed workers would accept less.
- Insider–outsider models (Lindbeck and Snower): incumbent workers have bargaining power that protects their real pay while outsiders remain jobless.
- Implicit contracts (Azariadis, Baily): risk-averse workers and risk-neutral firms agree to smooth real wages across the business cycle.
- Union bargaining and indexation clauses, particularly common in continental Europe, which tie wages to past inflation or productivity.
Real wage rigidity is central to New Keynesian explanations of unemployment fluctuations. Blanchard and Galí (2007) showed that adding real rigidity to a standard model helps reconcile the observed trade-off between inflation and unemployment stabilization, which they called the "divine coincidence" failure. It is also a leading explanation for the persistently high unemployment rates in much of Europe during the 1980s and 1990s relative to the United States, a contrast emphasized by the OECD Jobs Study (1994) and by Layard, Nickell, and Jackman.
For policy researchers, the concept matters because it implies that supply shocks (such as the 1973 oil crisis or the 2022 energy price spike) translate more durably into joblessness where collective bargaining, indexation, or generous unemployment benefits anchor real pay. Structural reforms targeting wage-setting institutions—rather than demand management alone—are typically prescribed as the remedy.
Example
After the 1973 OPEC oil shock, many Western European economies experienced sustained double-digit unemployment partly because indexed and union-bargained real wages did not adjust downward to absorb the supply shock.
Frequently asked questions
Nominal rigidity means the money wage is slow to change; real rigidity means the purchasing-power wage is slow to change, often because contracts or norms index pay to prices or productivity.
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