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Paper #1076

Labor markets and monetary policy: A new-Keynesian model with unemployement
Olivier Blanchard i Jordi GalĂ­
Març 2006
We construct a utility-based model of fluctuations, with nominal rigidities and unemployment, and draw its implications for the unemployment-inflation trade- off and for the conduct of monetary policy. We proceed in two steps. We first leave nominal rigidities aside. We show that, under a standard utility specification, productivity shocks have no effect on unemployment in the constrained efficient allocation. We then focus on the implications of alternative real wage setting mechanisms for fluctuations in un- employment. We show the role of labor market frictions and real wage rigidities in determining the effects of productivity shocks on unemployment. We then introduce nominal rigidities in the form of staggered price setting by firms. We derive the relation between inflation and unemployment and discuss how it is influenced by the presence of labor market frictions and real wage rigidities. We show the nature of the tradeoff between inflation and unemployment stabilization, and its dependence on labor market characteristics. We draw the implications for optimal monetary policy.
Paraules clau:
New-Keynesian model, labor market frictions, search model, unemployment, sticky prices, real wage rigidities
Codis JEL:
E32, E50
Àrea de Recerca:
Macroeconomia i Economia Internacional

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