Dong, Yingying; Lewbel, Arthur - Department of Economics, University of California-Irvine - 2011
a threshold, an average treatment effect can be nonparametrically identified. We show that the derivative of this … treatment effect with respect to the threshold is also nonparametrically identified and easily estimated, in both sharp and … fuzzy designs. This marginal threshold treatment effect (MTTE) may be used to estimate the impact on treatment effects of …