We challenge the conventional wisdom on the variety and productivity gains from trade liberalization which are commonly referred to as "new" gains from trade. In particular, we show that the import variety gains measured in studies such as Broda and Weinstein (2006) are counteracted by exactly...

There is a large body of evidence indicating that cross-country differences in income levels are associated with differences in productivity. If workers are much more productive in one country than in another, restrictions on immigration lead to large efficiency losses. The paper quantifies...

We study empirically and theoretically the dynamic effects of the unilateral reduction in import tariffs undertaken by Colombia from 1989-1993, with a particular emphasis on the transition and including any anticipation effects. We develop an asymmetric two-country, multi-sector heterogeneous...

Small Think Regionalism focused on the Vinerian question: "Would a nation gain from joining a trade bloc?" Big Think Regionalism considers regionalism's systemic impact on the world trading system, focusing mainly on two questions: "Does spreading regionalism harm world welfare?" and "Does...

Continental trade blocs are emerging in many parts of the world almost in tandem. If trade blocs are required to satisfy the McMillan criterion of not lowering their trade volume with outside countries, they have to engage in a dramatic reduction of trade barriers against non-member countries....

After signing ten free trade agreements between 1993 and 2001, Mexico as a world leader in foreign trade policy continues to negotiate with countries such as Japan, Panama, Uruguay or Argentina. Criticism of multiple regional trade agreements (RTAs) arises from a consistency test, but also from...

A large and growing number of countries participate in multiple preferential trade agreements (PTAs), which increasingly entail broad cooperation over policies extending far beyond trade barriers. I review the traditional and non-traditional motives for PTAs and their empirical determinants as...

This paper reviews the literature on governments' motivations for negotiating and joining international trade agreements. I discuss both normative explanations for trade agreements and explanations based on political-economy concerns. Most of the paper focuses on the purpose of multilateral...