NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Identification and the Liquidity Effect of a Monetary Policy Shock

Lawrence J. Christiano, Martin Eichenbaum

NBER Working Paper No. 3920
Issued in November 1991
NBER Program(s):   EFG   ME

Conventional wisdom holds that unanticipated expansionary monetary policy shocks cause transient but persistent decreases in real and nominal interest rates. However a number of econometric studies argue that the evidence favors the opposite view, namely that these shocks actually raise, rather than lower, short term interest rates. We show that this conclusion is not robust to the measure of monetary aggregate used or to the assumptions made to identify monetary policy disturbances. For example, when our analysis is done using non borrowed reserves, we find strong evidence in favor of the conventional view. Existing challenges to the conventional view lack credibility not just because of their fragility. They are based upon measures of policy disturbances which generate seemingly implausible implications about things other than interest rates.

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Document Object Identifier (DOI): 10.3386/w3920

Published: "Some Empirical Evidence on the Liquidity Effect", Political Economy, Growth, and Business Cycles EDS.: A. Cuikerman, Z. Hercowitz, L. Leiderman MIT Press 1992

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