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Policy interaction, expectations and the liquidity trap

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Author Info

  • Evans, George W.

    (University of Oregon)

  • Honkapohja , Seppo

    (University of Helsinki)

Abstract

In this paper we consider inflation and government debt dynamics when monetary policy employs a global interest rate rule and private agents’ forecasts using adaptive learning. Because of the zero lower bound on interest rates, active interest rate rules are known to imply the existence of a second, low inflation steady state, below the target inflation rate. Under adaptive learning dynamics we find the additional possibility of a liquidity trap, in which the economy slips below this low inflation steady state and is driven to an even lower inflation floor which, in turn, is supported by a switch to an aggressive money supply rule. Fiscal policy alone cannot push the economy out of the liquidity trap. However, raising the threshold at which the money supply rule is employed can dislodge the economy from the liquidity trap and ensure a return to the target equilibrium.

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File URL: http://www.suomenpankki.fi/en/julkaisut/tutkimukset/keskustelualoitteet/Documents/0322.pdf
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Bibliographic Info

Paper provided by Bank of Finland in its series Research Discussion Papers with number 22/2003.

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Length: 37 pages
Date of creation: 10 Sep 2003
Date of revision:
Handle: RePEc:hhs:bofrdp:2003_022

Contact details of provider:
Postal: Bank of Finland, P.O. Box 160, FI-00101 Helsinki, Finland
Web page: http://www.suomenpankki.fi/en/
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Related research

Keywords: stability of equilibria; fiscal and monetary policy; interest rate and money supply rules;

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References

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  1. Jess Benhabib & Stephanie Schmitt-Grohe & Martin Uribe, 2000. "Avoiding Liquidity Traps," Departmental Working Papers 199925, Rutgers University, Department of Economics.
  2. Cho, In-Koo & Kasa, Kenneth, 2008. "Learning Dynamics And Endogenous Currency Crises," Macroeconomic Dynamics, Cambridge University Press, vol. 12(02), pages 257-285, April.
  3. Thomas Sargent & Noah Williams & Tao Zha, 2006. "The Conquest of South American Inflation," NBER Working Papers 12606, National Bureau of Economic Research, Inc.
  4. In-Koo Cho & Noah Williams & Thomas J. Sargent, 2002. "Escaping Nash Inflation," Review of Economic Studies, Oxford University Press, vol. 69(1), pages 1-40.
  5. Bullard, James & Cho, In-Koo, 2005. "Escapist policy rules," Journal of Economic Dynamics and Control, Elsevier, vol. 29(11), pages 1841-1865, November.
  6. Evans, George W & Honkapohja, Seppo, 1995. "Local Convergence of Recursive Learning to Steady States and Cycles in Stochastic Nonlinear Models," Econometrica, Econometric Society, vol. 63(1), pages 195-206, January.
  7. Benhabib, Jess & Schmitt-Grohé, Stephanie & Uribe, Martín, 1999. "The Perils of Taylor Rules," CEPR Discussion Papers 2314, C.E.P.R. Discussion Papers.
  8. N. Williams, 2002. "Stability and Long Run Equilibrium in Stochastic Fictitious Play," Princeton Economic Theory Working Papers cbeeeb49cc8afc83f125df5a8, David K. Levine.
  9. William Poole, 2002. "Flation," Speech 49, Federal Reserve Bank of St. Louis.
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  1. > Macroeconomics > Monetary Theory
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