Monetary Policy, Oil Shocks, and TFP: Accounting for the Decline in U.S. Volatility
Federal Reserve Banks - Federal Reserve Bank of San Francisco
affiliation not provided to SSRN
FRB of Philadelphia Working Paper No. 03-22/R
FRB International Finance Discussion Paper No. 873
The volatility of the U.S. economy since the mid-1980s is much lower than it was during the prior 20-year period. The proximate causes of the increased stability and their relative importance remain unsettled, but the sharpness of the volatility decline and its timing has led authors such as Taylor (2000) to argue that a sudden shift in monetary policy is a prime candidate. The authors assess this claim using a calibrated stochastic dynamic general equilibrium model to quantify the contribution of monetary policy and exogenous shocks to the postwar volatility pattern for U.S. output. Their principal finding is that the change in monetary policy played a relatively small role in the postwar volatility decline, accounting for 10 to 15 percent of the drop in real output volatility. The model attributes most of the output volatility decline to smaller TFP shocks: oil shocks end up increasing volatility in the post-84 period relative to the pre-79 period. Negative oil shocks do lead to significant downturns in real output in the model, but the pattern of exogenous shocks post-84 is not different enough from the pre-79 pattern to play a meaningful role in lowering output volatility.
Number of Pages in PDF File: 43
Keywords: Monetary policy, Volatility, Oil shocks
Date posted: October 3, 2004
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