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Are DSGE Approximating Models Invariant to Shifts in Policy?

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Author Info

  • Cogley Timothy

    ()
    (New York University)

  • Yagihashi Takeshi

    ()
    (College of Staten Island)

Abstract

Bayesian and maximum-likelihood estimates of structural parameters in DSGE approximating models are invariant to shifts in policy only when the model is correctly specified. Since DSGE models are approximations, strict invariance is unattainable. Despite that, DSGE models might be useful for policy analysis provided that structural parameters are approximately invariant. We discuss this issue in the context of an example involving a pair of new Keynesian DSGE models in which the central bank's policy model includes a misspecified Phillips curve. In our example, the approximating model is a useful guide for policy despite the failure of strict invariance.

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Bibliographic Info

Article provided by De Gruyter in its journal The B.E. Journal of Macroeconomics.

Volume (Year): 10 (2010)
Issue (Month): 1 (October)
Pages: 1-33

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Handle: RePEc:bpj:bejmac:v:10:y:2010:i:1:n:27

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Cited by:
  1. Yongsung Chang & Sun-Bin Kim & Frank Schorfheide, 2010. "Labor-Market Heterogeneity, Aggregation, and the Lucas Critique," NBER Working Papers 16401, National Bureau of Economic Research, Inc.
  2. Hashem M. Pesaran & Ron P. Smith, 2011. "Beyond the DSGE Straitjacket," CESifo Working Paper Series 3447, CESifo Group Munich.
  3. Senbeta, Sisay, 2011. "How applicable are the new keynesian DSGE models to a typical low-income economy?," MPRA Paper 30931, University Library of Munich, Germany.
  4. Saijo, Hikaru, 2013. "Estimating DSGE models using seasonally adjusted and unadjusted data," Journal of Econometrics, Elsevier, vol. 173(1), pages 22-35.

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