Two of the most important trade policy developments to take place since the 1980s are the expansion of preferential trade agreements and temporary trade barriers, such as antidumping, safeguards, and countervailing duties. Despite the empirical importance of preferential trade agreements and...

There is a growing literature that investigates the effect of trade liberalization on productivity. Nearly all such studies assume that trade policy is determined independently of productivity, hence it is exogenous. The author shows that this assumption is not valid in general, both...