We formulate a econometric framework for studying treatment effects on discrete outcomes when the treatment effects are heterogeneous and the unobserved heterogeneity is given by a factor structure. Within this framework, we show how to define and semiparametrically estimate the average...

This report provides information on the impact of CIMMYT training, based on a set of background interviews with center staff, reviews of relevant data and documents provided by CIMMYT, and two surveys: one of research leaders in trainees’ countries of origin and one of participants in CIMMYT...

Gains from productivity and knowledge transmission arising from the presence of foreign firms have received a good deal of empirical attention, but theoretical micro-foundations for this mechanism are limited. Here we develop a dynamic model in which foreign experts may train domestic workers...