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Title: Monetary Policy in a Small Open Economy with a Preference for Robustness

Author(s): Richard Dennis, Kai Leitemo and Ulf S�derstr�m

Publication Date: January 2007

Keyword(s): model misspecification, model uncertainty and robust control

Programme Area(s): International Macroeconomics

Abstract: We use robust control techniques to study the effects of model uncertainty on monetary policy in an estimated, semi-structural, small-open-economy model of the U.K. Compared to the closed economy, the presence of an exchange rate channel for monetary policy not only produces new trade-offs for monetary policy, but it also introduces an additional source of specification errors. We find that exchange rate shocks are an important contributor to volatility in the model, and that the exchange rate equation is particularly vulnerable to model misspecification, along with the equation for domestic inflation. However, when policy is set with discretion, the cost of insuring against model misspecification appears reasonably small.

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Bibliographic Reference

Dennis, R, Leitemo, K and S�derstr�m, U. 2007. 'Monetary Policy in a Small Open Economy with a Preference for Robustness'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=6067