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A simple check for VAR representations of DSGE models

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Author Info

  • Massimo Franchi

    ()
    ("Sapienza" Universita' di Roma)

  • Anna Vidotto

    ()
    (Universita' di Roma "Tor Vergata")

Abstract

The present paper shows that there is a simple way to check whether a DSGE model can be represented by a finite order VAR. This consists in verifying that the eigenvalues of a certain matrix defined in Fernandez-Villaverde et al. (2007) are all equal to zero. Further we show that this condition is equivalent to the one in Ravenna (2007), which is, however, not easily applicable.

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File URL: http://www.dss.uniroma1.it/RePec/sas/wpaper/20125_Franchi_Vidotto.pdf
File Function: First version, 2012
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Bibliographic Info

Paper provided by Centre for Empirical Economics and Econometrics, Department of Statistics, "Sapienza" University of Rome in its series DSS Empirical Economics and Econometrics Working Papers Series with number 2012/5.

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Length: 7 pages
Date of creation: Oct 2012
Date of revision:
Handle: RePEc:sas:wpaper:20125

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Related research

Keywords: DSGE; VAR; invertibility; non-fundamentalness.;

This paper has been announced in the following NEP Reports:

References

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  1. Lawrence J. Christiano & Martin Eichenbaum & Robert Vigfusson, 2006. "Assessing Structural VARs," NBER Working Papers 12353, National Bureau of Economic Research, Inc.
    • Lawrence J. Christiano & Martin Eichenbaum & Robert Vigfusson, 2007. "Assessing Structural VARs," NBER Chapters, in: NBER Macroeconomics Annual 2006, Volume 21, pages 1-106 National Bureau of Economic Research, Inc.
  2. Jesús Fernández-Villaverde & Juan F. Rubio-Ramirez & Thomas J. Sargent & Mark Watson, 2006. "A,B,C's (and D's)'s for Understanding VARS," Levine's Bibliography 321307000000000646, UCLA Department of Economics.
  3. Alasdair Scott & George Kapetanios & Adrian Pagan, 2005. "Making a match: combining theory and evidence in policy-oriented macroeconomic modelling," Computing in Economics and Finance 2005 462, Society for Computational Economics.
  4. Federico Ravenna, 2005. "Vector Autoregressions and Reduced Form Representations of DSGE Models," 2005 Meeting Papers 841, Society for Economic Dynamics.
  5. Sims, Christopher A, 1980. "Macroeconomics and Reality," Econometrica, Econometric Society, vol. 48(1), pages 1-48, January.
  6. Massimo Franchi & Paolo Paruolo, 2012. "On ABCs (and Ds) of VAR representations of DSGE models," DSS Empirical Economics and Econometrics Working Papers Series 2012/4, Centre for Empirical Economics and Econometrics, Department of Statistics, "Sapienza" University of Rome.
  7. Marco Lippi & Lucrezia Reichlin, 1994. "VAR analysis, non-fundamental representations, Blashke matrices," ULB Institutional Repository 2013/10151, ULB -- Universite Libre de Bruxelles.
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