Hu, Yingyao; Lewbel, Arthur - Centre for Microdata Methods and Practice (CEMMAP) - 2008
<p><p><p>Consider an observed binary regressor D and an unobserved binary variable D*, both of which affect some other variable Y . This paper considers nonparametric identification and estimation of the effect of D on Y , conditioning on D* = 0. For example, suppose Y is a person's wage, the unobserved...</p></p></p>