Working Papers:

Efficiency bounds for estimating linear functionals of nonparametric regression models with endogenous regressors (With T. Severini. Revised version)

Optimally combining censored and uncensored datasets Data and computer programs (With P. Devereux. Revised version)

On testing conditional moment restrictions: The canonical case (With Y. Kitamura)

Nonparametric estimation and testing of homogeneous functional forms