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Paper #890

Títol:
Stabilization versus insurance: Welfare effects of procyclical taxation under incomplete markets
Autors:
James S. Costain i Michael Reiter
Data:
Novembre 2004
Resum:
We construct and calibrate a general equilibrium business cycle model with unemployment and precautionary saving. We compute the cost of business cycles and locate the optimum in a set of simple cyclical fiscal policies. Our economy exhibits productivity shocks, giving firms an incentive to hire more when productivity is high. However, business cycles make workers' income riskier, both by increasing the unconditional probability of unusually long unemployment spells, and by making wages more variable, and therefore they decrease social welfare by around one-fourth or one-third of 1% of consumption. Optimal fiscal policy offsets the cycle, holding unemployment benefits constant but varying the tax rate procyclically to smooth hiring. By running a deficit of 4% to 5% of output in recessions, the government eliminates half the variation in the unemployment rate, most of the variation in workers'aggregate consumption, and most of the welfare cost of business cycles.
Paraules clau:
Real business cycles, matching, precautionary saving, unemployment insurance, fiscal policy, incomplete markets, heterogeneity, computation
Codis JEL:
E24, E32, E62, E63, H21, J64, J65
Àrea de Recerca:
Macroeconomia i Economia Internacional

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