Symposium on Microeconometric Methods Estimation of Semiparametric Censored Regression Models: An Application to Changes in Black-White Earnings Inequality during the 1960s Kenneth Y. Chay, Bo E. Honore The Journal of Human Resources, Vol. 33, No. 1. (Winter, 1998), pp. 4-38. Stable URL: http://links.jstor.org/sici?sici=0022-166X%28199820%2933%3A1%3C4%3AEOSCRM%3E2.0.CO%3B2-8