NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Monetary Policy in Open Economies: Practical Perspectives for Pragmatic Central Bankers

Richard Clarida

NBER Working Paper No. 20545
Issued in October 2014
NBER Program(s):International Finance and Macroeconomics

This paper reviews and interprets some of the key policy implications that flow from a class of DSGE models for optimal monetary policy in the open economy. The framework suggests that good macroeconomic outcomes in open economies are possible by focusing inflation targeting that is implemented by a Taylor type rule, a rule that in equilibrium is reflected in the exchange rate as an asset price. Optimal monetary policy will not be able deliver a stationary ('stable') nominal exchange rate - let alone a fixed exchange rate or one that remains inside a target zone ‐ because, absent a commitment device, optimal monetary can't deliver a stationary domestic price level. Another feature in the data for inflation targeting countries that is consistent with monetary policy via Taylor type rule is that it will tend push the nominal exchange rate in the opposite direction from PPP in response to an 'inflation' shock - the 'bad news god news' result of Clarida -Waldman (2008;2014). This is so even though in the long run of these models the nominal exchange rate must in expectation obey PPP.

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Document Object Identifier (DOI): 10.3386/w20545

Published: Richard H. Clarida, 2014. "Monetary policy in open economies: Practical perspectives for pragmatic central bankers," Journal of Economic Dynamics and Control, vol 49, pages 21-30.

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