In March 2018, representatives of member countries of the African Union signed the African Continental Free Trade Area (AfCFTA) agreement. This agreement provides a framework for trade liberalization in goods and services and is expected to eventually cover all African countries. Using a...

This paper shows how gains from trade are conditioned by love of variety, defined as the extent to which an additional product variety generates benefits in either final or intermediate consumption. We develop a multi-country, multi-sector gravity trade model where love of variety is...

This paper identifies the most restrictive limit that rules of origin can enforce and still continue to guarantee gains from trade for free trade area formation in general settings. Many commonly used rules of origin exceed this condition in practice. Second, free trade areas generally involve...

How does intranational factor mobility shape the welfare effects of a trade shock? I provide evidence that during WWI, a demand shock emanated from belligerent countries and affected neutral Spain. Within Spain, labor predominantly reallocated locally, while the most affected provinces...

Amid a general rise in protectionism and a trade war between the world's two largest economies, this paper analyzes changes in gains from trade for the world over a decade marked by rapid global economic integration preceding the global financial crisis of 2007-08. It employs state-of-the-art...

We review a recent body of theoretical work that aims to put numbers on the consequences of globalization. A unifying theme of our survey is methodological. We rely on gravity models and demonstrate how they can be used for counterfactual analysis. We highlight how various economic...

We consider trade liberalization in a multilateral trade model, where countries have identical homothetic tastes but may have different constant returns to scale technologies that produce at least two goods from at least two factors. In this model, we derive the world prices after trade...

This study considers endogenous determination of domestic standards on products that cause negative consumption externalities in the presence of a preferential trade agreement (PTA) in a three-country world. In particular, we examine how a PTA affects the optimal levels of external tariffs and...

The emergence of the People's Republic of China (PRC) as a great economic power has stimulated an epochal shift in patterns of world trade, accompanied by a remarkable level of internal migration within the country. Hundreds of millions of Chinese workers have moved from inland areas to coastal...