1. Training effects on employment when the training effects are heterogeneous: An application to norwegian vocational rehabilitation programs;Aakvik,1999
2. Estimating treatment effects for discrete outcomes when responses to treatment vary: An application to norwegian vocational rehabilitation programs;Aakvik;J. Econometrics,2005
3. Semiparametric difference-in-differences estimators;Abadie;Rev. Econom. Stud.,2005
4. Econometric evaluation of social programs, part III: Distributional treatment effects, dynamic treatment effects, dynamic discrete choice, and general equilibrium policy evaluation;Abbring,2007
5. Cross section and panel data estimators for nonseparable models with endogenous regressors;Altonji;Econometrica,2005