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This paper provides a practical test for strict exogeneity in linear panel data models with fixed effects when the number of individuals N goes to infinity while the number of time periods T is fixed. The test is based on the supremum of a sequence of Wald test statistics. Under suitable conditions, we establish the asymptotic distribution of the test statistic and consistency of the test. A bootstrap...
In this paper we follow Hansen (2015a) and propose a Stein-like estimator for linear panel data models. Our estimator takes a weighted average of the fixed effects estimator and the random effects estimator using the weights constructed from Hausman’s (1978) testing statistic. We establish the asymptotic distribution of the Stein-like estimator and show its asymptotic risk being strictly smaller than...
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