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Optimal fiscal policy

Jasper Lukkezen and C. N. Teulings ()

No 9473, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: This paper derives and estimates rules for fiscal policy that prescribe the optimal response to changes in unemployment and debt. We combine the reducedform model of the economy from a linear VAR with a non-linear welfare function and obtain analytic solutions for optimal policy. The variables in our reducedform model – growth, unemployment, primary surplus – have a natural rate that cannot be affected by policy. Policy can only reduce fluctuations around these natural rates. Our welfare function contains future GDP and unemployment, the relative weights of which determine the optimal response. The optimal policy rule demands an immediate and large policy response that is procyclical to growth shocks and countercyclical to unemployment shocks. This result holds true when the weight of unemployment in the welfare function is reduced to zero. The rule currently followed by policy makers responds procyclically to both growth and unemployment shocks, and does so much slower than the optimal rule, leading to significant welfare losses.

Keywords: debt sustainability; fiscal consolidation; fiscal policy rules; optimal control; optimal policy (search for similar items in EconPapers)
JEL-codes: E6 H6 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mac
Date: 2013-05
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Working Paper: Optimal Fiscal Policy (2013) Downloads
Working Paper: Optimal fiscal policy (2013) Downloads
Working Paper: Optimal Fiscal Policy (2013) Downloads
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