May 2006

Can the U.S. Monetary Policy Fall (Again) in an Expectation Trap?

Roc Armenter and Martin Bodenstein

Abstract:

We provide a tractable model to study monetary policy under discretion. We focus on Markov equilibria. For all parametrizations with an equilibrium inflation rate around 2%, there is a second equilibrium with an inflation rate just above 10%. Thus the model can simultaneously account for the low and high inflation episodes in the U.S. We carefully characterize the set of Markov equilibria along the parameter space and find our results to be robust.

Full paper (screen reader version)

Keywords: Time inconsistency, inflation, expectation traps

PDF: Full Paper

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Last Update: November 23, 2020