This article investigates power and size of some tests for exogeneity of a binary explanatory variable in count models by conducting extensive Monte Carlo simulations. The tests under consideration are Hausman contrast tests as well as univariate Wald tests, including a new test of notably easy...

The phenomenon of international production sharing, in which production is broken up into smaller bits of tasks and locate them in separate places, has been widely observed globally in the last several decades. While it has been getting a lot of attention, it is still not clear how to define and...