We use the control function approach to identify the average treatment effect and the effect of treatment on the treated in models with a continuous endogenous regressor whose impact is heterogeneous. We assume a stochastic polynomial restriction on the form of the heterogeneity, but unlike alternative nonparametric control function approaches, our approach does not require large support assumptions.
机构:
Hitotsubashi Univ, Hitotsubashi Inst Adv Study, 2-1 Naka, Kunitachi, Tokyo 1868601, Japan
Univ Tokyo, Grad Sch Econ, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1130033, JapanHitotsubashi Univ, Hitotsubashi Inst Adv Study, 2-1 Naka, Kunitachi, Tokyo 1868601, Japan