Recent theories and empirics suggest that trade openness increases production fragmentation across countries. In this paper, we focus on the relationship between trade openness and firms’ choice of vertical structure. We find supportive, firm-level evidence that upon trade liberalization,...

We examine the welfare implications of the two major types of regional trade agreements (RTAs)—free trade agreements (FTAs) and customs unions (CUs)—within the WTO system in the presence of FDI. To do so, we analyze multilateral tariff cooperation in the context of two types of WTO...