Monetary policy as a process of search

Abstract

Monetary policy makers are uncertain about the state of the economy and learn from the economy’s reaction to the policy. Private agents, however, anticipate any systematic attempt to incorporate this information into future policy. We analyze this feedback in the context of a monetary authority’s attempt to stimulate an economy in recession. We show that modest stimuli may prove ineffectual. If small reductions in interest rates are unlikely to promote a response, then they may be followed by further cuts. A vicious circle develops in which the expectation that the policy could fail leads investors to delay investment thereby promotingfailure.

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