in line with the predictions of our theory. In particular, we find that the share of short-term collaborations is higher …

This paper develops an elementary theory of global supply chains. We consider a world economy with an arbitrary number …

export their goods and whether to use imported intermediates. The model highlights mechanisms whereby import policies affect … counterfactual experiments to assess quantitatively the positive and normative effects of barriers to trade in import and export …. Furthermore, because of import and export complementarities, policies which inhibit the importation of foreign intermediates can …

, where exports are classified as ordinary trade, import-and-assembly processing trade (processing firm sources and pays for …

-proportions trade theory, Heckscher-Ohlin forces operate at the within-industry level, leading to endogenous variation in skill …

We develop a theory of a firm in an incomplete contracts environment which decides on its complexity, organization, and …