Implementing Optimal Monetary Policy in New-Keynesian Models with Inertia
AbstractWe consider optimal monetary policy in New Keynesian models with inertia. First order conditions, which we call the MJB-alternative, are found to improve upon the timeless perspective. The MJB-alternative is shown to be the best possible in the sense that it minimizes policymakers' unconditional expected loss, and further, it is numerically found to offer significant improvement over the timeless perspective. Implementation of the MJB-alternative is considered via construction of interest-rate rules that are consistent with its associated unique equilibrium. Following Evans and Honkapohja (2004), an expectations based rule is derived that always yields a determinate model and an E-stable equilibrium. Further, the "policy manifold" of all interest-rate rules consistent with the MJB-alternative is classified, and open regions of this manifold are shown to correspond to indeterminate models and unstable equilibria.
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Bibliographic InfoPaper provided by University of Oregon Economics Department in its series University of Oregon Economics Department Working Papers with number 2006-5.
Date of creation: 03 Jun 2006
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Monetary Policy; Taylor Rules; Indeterminacy; E-stability;
Other versions of this item:
- Evans George W & McGough Bruce, 2010. "Implementing Optimal Monetary Policy in New-Keynesian Models with Inertia," The B.E. Journal of Macroeconomics, De Gruyter, vol. 10(1), pages 1-25, March.
- E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
- D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
- D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-06-24 (All new papers)
- NEP-CBA-2006-06-24 (Central Banking)
- NEP-MAC-2006-06-24 (Macroeconomics)
- NEP-MON-2006-06-24 (Monetary Economics)
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- George Waters, 2011. "Dangers of commitment under rational expectations," Journal of Economics and Finance, Springer, vol. 35(4), pages 371-381, October.
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