Selection on Observed and Unobserved Variables: Assessing the Effectiveness of Catholic Schools
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We develop estimation methods that use the amount of selection on the observables in a model as a guide to the amount of selection on the unobservables. We show that if the observed variables are a random subset of a large number of factors that influence the endogenous variable and the outcome of
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美国国家经济研究局创建时间：
2000-08-01
