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Expectation traps and monetary policy

  • Stefania Albanesi
  • V. V. Chari
  • Lawrence J. Christiano

Why is inflation persistently high in some periods and low in others? The reason may be absence of commitment in monetary policy. In a standard model, absence of commitment leads to multiple equilibria, or expectation traps, even without trigger strategies. In these traps, expectations of high or low inflation lead the public to take defensive actions, which then make accommodating those expectations the optimal monetary policy. Under commitment, the equilibrium is unique and the inflation rate is low on average. This analysis suggests that institutions which promote commitment can prevent high inflation episodes from recurring.

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Paper provided by Federal Reserve Bank of Minneapolis in its series Staff Report with number 319.

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Date of creation: 2003
Date of revision:
Publication status: Published in Review of Economic Studies> (Vol. 70, No. 4, October 2003, pp. 715-41)
Handle: RePEc:fip:fedmsr:319
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