Nonparametric Identification and Estimation in a Generalized Roy Model
---- Acknowledgements ----
We would like to thank Richard Blundell, James Heckman, Hide Ichimura, Robert Moffitt, Tiemen Woutersen, and seminar participants at SUNY Albany, Duke University, Johns Hopkins University and the University of Chicago for their helpful comments. All remaining errors and omissions are our own. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.