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Determining individual or time effects in panel data models
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DOI：10.1016/j.jeconom.2019.07.008.png)
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Abstract
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In this paper we propose a jackknife method to determine individual and time effects in linear panel data models. We first show that when both the serial and cross-sectional correlations among the idiosyncratic error terms are weak, our jackknife method can pick up the correct model with probability approaching one (w.p.a.1). In the presence of moderate or strong degree of serial correlation, we modify our jackknife criterion function and show that the modified jackknife method can also select the correct model w.p.a.1. We conduct Monte Carlo simulations to show that our new methods perform remarkably well in finite samples. We apply our methods to study (i) the crime rates in North Carolina, (ii) the determinants of saving rates across countries, and (iii) the relationship between guns and crime rates in the U.S. (C) 2019 Elsevier B.V. All rights reserved.
Keywords:
Consistency
Cross-validation
Dynamic panel
Information criterion
Jackknife
Individual effect
Time effect
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