Since the pioneering work of Krugman (1980) economists try to quantify the welfare gains from an increase in traded variety. The seminal work of Feenstra (1994) and its application to the U.S. of Broda and Weinstein (2006) allowed this quantification for the first time using highly disaggregated...

Modern trade models attribute the dispersion of international prices to physical and man-made barriers to trade, to the pricing-to-market by heterogeneous producers, and to differences in the quality of output offered by firms. This paper analyzes a quantitative general equilibrium model that...

Using varieties of a rich model that considers sectoral heterogeneity and input-output linkages, this paper shows that the overall welfare gains of a region within a country can be decomposed into domestic versus international welfare gains from trade. Empirical results based on state-level data...

Using daily price and quantity data on imported and domestic agricultural products, this paper estimates the elasticity of substitution between home and foreign goods (i.e., the Armington elasticity), the elasticity of substitution across goods, and the elasticity of substitution across...

With non-homothetic preferences, a monopolistic competition equilibrium is inefficient in the way inputs are allocated towards production. This paper quantifies a gains from trade component that is present only when reallocation is properly measured in a setting with heterogeneous firms that...

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...

This paper investigates the impact of deep integration in preferential trade agreements (PTAs) on multinational production (MP), i.e. the production carried out by firms outside of their country of origin. Using a structural gravity model, we find that tariff reductions have a positive impact on...