The Making of Economic Policy begins by observing that most countries' trade policies are so blatantly contrary to all the prescriptions of the economist that there is no way to understand this discrepancy except by delving into the politics. The same is true for many other dimensions of...

In this paper, I survey the recent theoretical literature that incorporates heterogeneous labor into models of international trade. The models with heterogeneous labor have been used to study how talent dispersion can be a source of comparative advantage, how the opening of trade affects the...