Why might policymakers be tempted to renege on an announcement they made earlier? In this situation, what is the advantage of a policy rule?

Macroeconomics
13th Edition
ISBN:9781337617390
Author:Roger A. Arnold
Publisher:Roger A. Arnold
Chapter15: Monetary Policy
Section: Chapter Questions
Problem 11QP
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Why might policymakers be tempted to renege on an announcement they made earlier? In this situation, what is the advantage of a policy rule?

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