NONPARAMETRIC TESTS OF MOMENT CONDITION STABILITY

Ted Juhl and Zhijie Xiao

Econometric Theory, 2013, vol. 29, issue 1, 90-114

Abstract: This paper considers testing for moment condition instability for a wide variety of models that arise in econometric applications. We propose a nonparametric test based on smoothing the moment conditions over time. The resulting test takes the form of a U-statistic and has a limiting normal distribution. The proposed test statistic is not affected by changes in the distribution of the data, so long as certain simple regularity conditions hold. We examine the performance of the test through a small Monte Carlo experiment.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:cup:etheor:v:29:y:2013:i:01:p:90-114_00

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