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Monetary and Fiscal Policy under Learning in the Presence of a Liquidity Trap

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  • George W. Evans

Abstract

This paper reports on the findings of Evans, Guse, and Honkapohja (2007) concerning the global economic dynamics under learning in a New Keynesian model in which the interest rate rule is subject to the zero lower bound. Under normal monetary and fiscal policy, the intended steady state is locally but not globally stable. Large pessimistic shocks to expectations can lead to deflationary spirals with falling prices and falling output. To avoid this outcome, we recommend augmenting normal policies with inflation threshold policies: if under normal policies inflation would fall below a suitably chosen threshold, these policies should be replaced by aggressive monetary and fiscal policies that guarantee this lower bound on inflation.

Suggested Citation

  • George W. Evans, 2008. "Monetary and Fiscal Policy under Learning in the Presence of a Liquidity Trap," Monetary and Economic Studies, Institute for Monetary and Economic Studies, Bank of Japan, vol. 26, pages 59-86, December.
  • Handle: RePEc:ime:imemes:v:26:y:2008:p:59-86
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    References listed on IDEAS

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    1. George W. Evans & Seppo Honkapohja, 2005. "Policy Interaction, Expectations and the Liquidity Trap," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 8(2), pages 303-323, April.
    2. Perri, Fabrizio, 2001. "The role of fiscal policy in Japan: a quantitative study," Japan and the World Economy, Elsevier, vol. 13(4), pages 387-404, December.
    3. George W. Evans & Seppo Honkapohja, 2006. "Monetary Policy, Expectations and Commitment," Scandinavian Journal of Economics, Wiley Blackwell, vol. 108(1), pages 15-38, March.
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    7. Evans, George W. & Honkapohja, Seppo, 2007. "Policy Interaction, Learning, And The Fiscal Theory Of Prices," Macroeconomic Dynamics, Cambridge University Press, vol. 11(05), pages 665-690, November.
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