Expectation traps in a New Keynesian open economy model

David M. Arseneau

No 2004-45, Finance and Economics Discussion Series from Board of Governors of the Federal Reserve System (U.S.)

Abstract: This paper illustrates that the introduction of a money demand distortion into an otherwise standard New Keynesian Open Economy model generates multiple discretionary equilibria. These equilibria arise in the form of expectations traps whereby the monetary authority is trapped into validating expectations of the private sector because failing to do so is costly. One implication of the model is that provided initial inflation expectations are sufficiently anchored the global Friedman rule emerges as an equilibrium under discretion. It is therefore a time-consistent outcome and hence fully sustainable even in absence of a commitment device or reputational considerations.

Keywords: Keynesian economics; Monetary policy (search for similar items in EconPapers)
Date: 2004
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