A Note on Information Flows and Identification of News Shocks Models

Marco Sorge

EERI Research Paper Series from Economics and Econometrics Research Institute (EERI), Brussels

Abstract: This note points out a hitherto unrecognised identification issue in a class of rational expectations (RE) models with news shocks. We show that different degrees of anticipation (information flows) have strikingly different implications for the identifiability of the underlying structural model, irrespective of its non-fundamental time-series representation. In particular, under full shock anticipation equilibrium reduced forms behave as noisy perfect foresight state motions, which are non-identifiable. As a consequence, the underlying news shocks model fails to be (first-order) identified. The identification failure is illustrated with a New Keynesian model that can be solved analytically.

Keywords: Rational expectations; perfect foresight; news shocks; identification. (search for similar items in EconPapers)
JEL-codes: C1 E32 (search for similar items in EconPapers)
Date: 2013-04-08
New Economics Papers: this item is included in nep-dge and nep-ecm
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Citations: View citations in EconPapers (4)

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Journal Article: A Note on Information Flows and Identification of News Shocks Models (2013)
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Persistent link: https://EconPapers.repec.org/RePEc:eei:rpaper:eeri_rp_2013_08

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