Optimal Simple and Implementable Monetary and Fiscal Rules: Expanded Version

61 Pages Posted: 13 Aug 2006 Last revised: 4 Sep 2006

See all articles by Stephanie Schmitt-Grohé

Stephanie Schmitt-Grohé

Centre for Economic Policy Research (CEPR); National Bureau of Economic Research (NBER)

Martín Uribe

Columbia University - Graduate School of Arts and Sciences - Department of Economics; National Bureau of Economic Research (NBER)

Date Written: August 2006

Abstract

This paper computes welfare-maximizing monetary and fiscal policy rules in a real business cycle model augmented with sticky prices, a demand for money, taxation, and stochastic government consumption. We consider simple feedback rules whereby the nominal interest rate is set as a function of output and inflation, and taxes are set as a function of total government liabilities. We implement a second-order accurate solution to the model. Our main findings are: First, the size of the inflation coefficient in the interest-rate rule plays a minor role for welfare. It matters only insofar as it affects the determinacy of equilibrium. Second, optimal monetary policy features a muted response to output. More importantly, interest rate rules that feature a positive response to output can lead to significant welfare losses. Third, the welfare gains from interest-rate smoothing are negligible. Fourth, optimal fiscal policy is passive. Finally, the optimal monetary and fiscal rule combination attains virtually the same level of welfare as the Ramsey optimal policy.

Suggested Citation

Schmitt-Grohe, Stephanie and Uribe, Martin, Optimal Simple and Implementable Monetary and Fiscal Rules: Expanded Version (August 2006). NBER Working Paper No. w12402, Available at SSRN: https://ssrn.com/abstract=923055

Stephanie Schmitt-Grohe (Contact Author)

Centre for Economic Policy Research (CEPR) ( email )

London
United Kingdom

National Bureau of Economic Research (NBER)

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Martin Uribe

Columbia University - Graduate School of Arts and Sciences - Department of Economics ( email )

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National Bureau of Economic Research (NBER)

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