Endogenous selection or treatment model estimation

被引:53
作者
Lewbel, Arthur [1 ]
机构
[1] Boston Coll, Dept Econ, Chestnut Hill, MA 02467 USA
基金
美国国家科学基金会;
关键词
sample selection; treatment effects; censoring; semiparametric; endogeneity; instrumental variables; switching regressions; heteroscedasticity; latent variable models; ordered choice; investment; returns to schooling;
D O I
10.1016/j.jeconom.2006.11.004
中图分类号
F [经济];
学科分类号
02 ;
摘要
In a sample selection or treatment effects model, common unobservables may affect both the outcome and the probability of selection in unknown ways. This paper shows that the distribution function of potential outcomes, conditional on covariates, can be identified given an observed variable V that affects the treatment or selection probability in certain ways and is conditionally independent of the error terms in a model of potential outcomes. Selection model estimators based on this identification are provided, which take the form of simple weighted averages, GMM, or two stage least squares. These estimators permit endogenous and mismeasured regressors. Empirical applications are provided to estimation of a firm investment model and a schooling effects on wages model. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:777 / 806
页数:30
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