Abstract

http://ssrn.com/abstract=1600862
 
 

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Fortune or Virtue: Time-Variant Volatilities Versus Parameter Drifting in U.S. Data


Jesús Fernández-Villaverde


University of Pennsylvania - Department of Economics; National Bureau of Economic Research (NBER)

Pablo Guerrón-Quintana


Federal Reserve Banks - Federal Reserve Bank of Philadelphia

Juan Francisco Rubio-Ramirez


Duke University - Department of Economics; Federal Reserve Bank of Atlanta - Research Department

April 29, 2010

FRB of Philadelphia Working Paper No. 10-14

Abstract:     
This paper compares the role of stochastic volatility versus changes in monetary policy rules in accounting for the time-varying volatility of U.S. aggregate data. Of special interest to the authors is understanding the sources of the great moderation of business cycle fluctuations that the U.S. economy experienced between 1984 and 2007. To explore this issue, the authors build a medium-scale dynamic stochastic general equilibrium (DSGE) model with both stochastic volatility and parameter drifting in the Taylor rule and they estimate it non-linearly using U.S. data and Bayesian methods.

Methodologically, the authors show how to confront such a rich model with the data by exploiting the structure of the high-order approximation to the decision rules that characterize the equilibrium of the economy. Their main empirical findings are: 1) even after controlling for stochastic volatility (and there is a fair amount of it), there is overwhelming evidence of changes in monetary policy during the analyzed period; 2) however, these changes in monetary policy mattered little for the great moderation; 3) most of the great performance of the U.S. economy during the 1990s was a result of good shocks; and 4) the response of monetary policy to inflation under Burns, Miller, and Greenspan was similar, while it was much higher under Volcker.

Number of Pages in PDF File: 73

Keywords: DSGE models, Stochastic volatility, Parameter drifting, Bayesian methods

JEL Classification: E10, E30, C11

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Date posted: May 6, 2010  

Suggested Citation

Fernández-Villaverde, Jesús and Guerrón-Quintana, Pablo and Rubio-Ramirez, Juan Francisco, Fortune or Virtue: Time-Variant Volatilities Versus Parameter Drifting in U.S. Data (April 29, 2010). FRB of Philadelphia Working Paper No. 10-14. Available at SSRN: http://ssrn.com/abstract=1600862 or http://dx.doi.org/10.2139/ssrn.1600862

Contact Information

Jesús Fernández-Villaverde (Contact Author)
University of Pennsylvania - Department of Economics ( email )
3718 Locust Walk
160 McNeil Building
Philadelphia, PA 19104
United States
215-898-1504 (Phone)
215-573-2057 (Fax)
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
Pablo Guerron-Quintana
Federal Reserve Banks - Federal Reserve Bank of Philadelphia ( email )
Ten Independence Mall
Philadelphia, PA 19106-1574
United States
Juan Francisco Rubio-Ramirez
Duke University - Department of Economics ( email )
Durham, NC 27708-0204
United States
Federal Reserve Bank of Atlanta - Research Department ( email )
1000 Peachtree Street, NE
Atlanta, GA 30309-4470
United States
404-498-8057 (Phone)
404-498-8956 (Fax)
HOME PAGE: http://www.econ.umn.edu/~rubio
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References:  59
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