surface with (nearly) any geography. Combining the gravity structure of trade with labor mobility, we provide conditions for … estimate the topography of trade costs, productivities, amenities and the strength of spillovers in the United States. We find …

extensive margin of trade) or due to larger values exported by existing firm (i.e. the intensive margin). Using micro data on … individual trade transactions from Spanish provinces between 1995 and 2008 and data on the stock of immigrants in those provinces … are also able to quantify the impact of immigrants on the intensive and extensive margin of trade and how it varies …

international trade. We develop a methodology to measure the unequal gains from trade across consumers within countries that is … of trade depending on the income elasticity of each country's exports and imports. Non-homotheticities across sectors … imply that trade typically favors the poor, who concentrate spending in more traded sectors. …

The basic gains-from-trade theorem makes a stark comparison between completely free trade and complete autarky. This … paper is motivated by recent evidence that trade has greatly expanded on the extensive margin (aka fragmentation, offshoring …) by adding newly traded goods and services and that much of this new trade is in intermediates. I provide an extension of …

The theoretical result that there are welfare gains from trade is a central tenet of international economics. In a … class of trade models that satisfy a "gravity equation," the welfare gains from trade can be computed using only the open … economy domestic trade share and the elasticity of trade with respect to variable trade costs. The measured welfare gains from …

that intermediation always magnifies the gains from trade under the former type of integration, but leads to more nuanced …This paper develops a simple model of international trade with intermediation. We consider an economy with two islands … frictions, our model reduces to a standard Ricardian model of trade. We use this simple model to contrast the implications of …

This paper introduces a new methodology for the estimation of demand trade elasticities based on an import intensity … components by using the OECD Input-Output tables. We argue that the composition of demand plays a key role in trade dynamics … 2008-09 Great Trade Collapse. …

Specialization alters the incidence of manufacturing trade costs to buyers and sellers, with pro-and anti … predicted local trade to predicted frictionless local trade) and the Total Factor Productivity effect of changing incidence. A …

The theory of international trade has paid scant attention to market institutions. Neither neoclassical theory nor new … trade models typically specify the process by which supply and demand meet. Yet in the real world, intermediaries play a … central role in materializing the gains from exchange outlined by standard trade theories. In Antràs and Costinot (2010), we …