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Cited by 360

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Testing Parameters in GMM Without Assuming that They Are Identified

Kleibergen, Frank·2005·Econometrica

Abstract

We propose a generalized method of moments (GMM) Lagrange multiplier statistic, i.e., the K statistic, that uses a Jacobian estimator based on the continuous updating estimator that is asymptotically uncorrelated with the sample average of the moments. Its asymptotic χ-super-2 distribution therefore holds under a wider set of circumstances, like weak instruments, than the standard full rank case for the expected Jacobian under which the asymptotic χ-super-2 distributions of the traditional statistics are valid. The behavior of the K statistic can be spurious around inflection points and maxima of the objective function. This inadequacy is overcome by combining the K statistic with a statistic that tests the validity of the moment equations and by an extension of Moreira's (2003) conditional likelihood ratio statistic toward GMM. We conduct a power comparison to test for the risk aversion parameter in a stochastic discount factor model and construct its confidence set for observed consumption growth and asset return series. Copyright The Econometric Society 2005.

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Metadata

Authors
Kleibergen, F.
Venue
Econometrica
Published
2005-07
Volume
73
Issue
4
Pages
1103-1123
ISSN
  • 0012-9682 (ISSN-L)
  • 1468-0262
OpenAlex
W2567119387
Cited by
360
References
1
FWCI
37.16
Type
journal article
Language
en
Open access
closed

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