The Heckman Correction for Sample Selection and Its Critique - A Short Survey

作者: Patrick Puhani

DOI:

关键词: EstimatorCollinearityStep methodStatisticsMathematicsHeckman correctionSample selectionMonte carlo studiesSelection (genetic algorithm)EconometricsMaximum likelihood

摘要: not available in German This paper gives a short overview of Monte Carlo studies on the usefulness Heckman's (1976, 1979) two-step estimator for estimating selection model. It shows that exploratory work to check collinearity problems is strongly recommended before deciding which apply. In absence problems, full-information maximum likelihood preferable limited-information two- step method Heckman, although latter also reasonable results. If, however, prevail, subsample OLS (or Two- Part Model) most robust amongst simple-to-calculate estimators. Journal Economic Surveys

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