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A Fine Time for Monetary Policy?

John F. Geweke
David E. Runkle - Senior Economist

Winter 1995

Abstract
Recent research in evaluating the effects of monetary policy is potentially tainted by the problem of time aggregation: that is, effects may be incorrectly estimated using quarterly data if the effects of policy occur rapidly. This study evaluates whether time aggregation is a serious problem in a simple vector autoregression. It shows time aggregation has little impact on evaluating the effect of monetary policy in a simple vector autoregression including total reserves, nonborrowed reserves, and the federal funds rate. This finding suggests that time aggregation is unlikely to be important in evaluating the effects of monetary policy in models including a goal variable, such as GDP growth.


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