共 25 条
[1]
Simple Meth-ods for Treatment Parameters within a Latent VariableFramework. Heckman,J,JTobias,and E.Vytlacil. The Review of Economics and Statistics . 2003
[2]
Sample selection bias as a specification error. Heckman,James J. Econometrica . 1979
[3]
The n-2-order Mean SquaredErrors of the Maximum Likelihood and the MinimumLogit Chi-square Method. Amemiya,Takeshi. The Annals of Statis-tics . 1980
[4]
The central role of the propensity score in observational studies for causal effects. Rosenbaum P R, Rubin D B. Biometrika . 1983
[5]
Economic Transition and Returns to Education in China. Li, Haizheng. Economics of Education Review . 2003
[6]
The Relation-ship Between Treatment Parameters within a LatentVariable Framework. Heckman,James,and Edward Vytlacil. Economics Letters . 2000