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Implementing Optimal Monetary Policy in New-Keynesian Models with Inertia

Author

Listed:
  • George W. Evans

    (University of Oregon Economics Department)

  • Bruce McGough

    (Oregon State University)

Abstract

We 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.

Suggested Citation

  • George W. Evans & Bruce McGough, 2006. "Implementing Optimal Monetary Policy in New-Keynesian Models with Inertia," University of Oregon Economics Department Working Papers 2006-5, University of Oregon Economics Department.
    • Handle: RePEc:ore:uoecwp:2006-5
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    File URL: http://economics.uoregon.edu/papers/UO-2006-5_Evans_Implementing.pdf
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    Cited by:

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    2. George Waters, 2011. "Dangers of commitment under rational expectations," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 35(4), pages 371-381, October.
    3. Bask, Mikael & Proaño, Christian R., 2016. "Optimal monetary policy under learning and structural uncertainty in a New Keynesian model with a cost channel and inflation inertia," Journal of Economic Dynamics and Control, Elsevier, vol. 69(C), pages 112-126.
    4. McGough, Bruce & Meng, Qinglai & Xue, Jianpo, 2013. "Expectational stability of sunspot equilibria in non-convex economies," Journal of Economic Dynamics and Control, Elsevier, vol. 37(6), pages 1126-1141.
    5. Tom D. Holden, 2024. "Robust Real Rate Rules," Econometrica, Econometric Society, vol. 92(5), pages 1521-1551, September.

    More about this item

    Keywords

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    JEL classification:

    • 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; Information and Knowledge; Communication; Belief; Unawareness
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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