Simple and powerful GMM over-identification tests with accurate size

Yixiao Sun and Min Seong Kim

Journal of Econometrics, 2012, vol. 166, issue 2, 267-281

Abstract: Based on the series long run variance estimator, we propose a new class of over-identification tests that are robust to heteroscedasticity and autocorrelation of unknown forms. We show that when the number of terms used in the series long run variance estimator is fixed, the conventional J statistic, after a simple correction, is asymptotically F-distributed. We apply the idea of the F-approximation to the conventional kernel-based J tests. Simulations show that the J∗ tests based on the finite sample corrected J statistic and the F-approximation have virtually no size distortion, and yet are as powerful as the standard J tests.

Keywords: F-distribution; Heteroscedasticity and autocorrelation robust; Long-run variance; Over-identification test; Robust standard error; Series estimator (search for similar items in EconPapers)
JEL-codes: C12 C32 (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (17)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:econom:v:166:y:2012:i:2:p:267-281

DOI: 10.1016/j.jeconom.2011.09.039

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