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Stochastic Volatility and DSGE Models

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Author Info
Martin M. Andreasen () (Bank of England and CREATES)
Abstract

This paper argues that a specification of stochastic volatility commonly used to analyze the Great Moderation in DSGE models may not be appropriate, because the level of a process with this specification does not have conditional or unconditional moments. This is unfortunate because agents may as a result expect productivity and hence consumption to be inifinite in all future periods. This observation is followed by three ways to overcome the problem.

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Publisher Info
Paper provided by School of Economics and Management, University of Aarhus in its series CREATES Research Papers with number 2009-29.

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Length: 8
Date of creation: 07 Jul 2009
Date of revision:
Handle: RePEc:aah:create:2009-29

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Web page: http://www.econ.au.dk/afn/

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Related research
Keywords: Great Moderation; Productivity shocks; and Time-varying coe¢ cients;

Find related papers by JEL classification:
E10 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - General
E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)

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  1. Siem Jan Koopman & Eugenie Hol Uspensky, 2002. "The stochastic volatility in mean model: empirical evidence from international stock markets," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 17(6), pages 667-689. [Downloadable!]
  2. Christopher A. Sims & Tao Zha, 2006. "Were There Regime Switches in U.S. Monetary Policy?," American Economic Review, American Economic Association, vol. 96(1), pages 54-81, March. [Downloadable!]
    Other versions:
  3. Chernov, Mikhail & Ronald Gallant, A. & Ghysels, Eric & Tauchen, George, 2003. "Alternative models for stock price dynamics," Journal of Econometrics, Elsevier, vol. 116(1-2), pages 225-257. [Downloadable!] (restricted)
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  4. Jesus Fernandez-Villaverde & Juan F. Rubio-Ramirez, 2007. "Estimating Macroeconomic Models: A Likelihood Approach," Review of Economic Studies, Blackwell Publishing, vol. 74(4), pages 1059-1087, October. [Downloadable!] (restricted)
    Other versions:
  5. Engle, Robert F & Lilien, David M & Robins, Russell P, 1987. "Estimating Time Varying Risk Premia in the Term Structure: The Arch-M Model," Econometrica, Econometric Society, vol. 55(2), pages 391-407, March. [Downloadable!] (restricted)
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This page was last updated on 2009-12-1.

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