Inequality is shaped by complementarities between worker characteristics and the characteristics of technology, capital, firms, and industries. International trade affects the state of technology, the stocks of different types of capital, and the allocation of labor across firms and industries....

We explore the quantitative importance of pricing complementarities in the context of a menu cost model of price adjustment. Using super-market scanner data, we document new evidence on the co-movement of prices and market shares at the product level, suggesting that changes in prices and market...

We study the response of factor allocation and the skill premium to trade liberalizations in a model that combines exogenous determinants of comparative advantage--that result from sectoral productivity and factor endowment differences across countries--with endogenous determinants of...

We present a general equilibrium model of the decisions of firms to innovate and to engage in international trade. We use the model to study the changes in aggregate productivity that arise as firms' exit, export, process- and product innovation decisions respond to a change in the marginal cost...

How do changes in the economic environment such as reductions in international trade costs or reductions in firms innovation costs impact aggregate productivity? More generally, how do changes in economic policies that affect market size, market structure, and the costs and benefits to firms of...

Capital equipment, such as computers and industrial machinery, embodies skill-biased technology and, hence, is complementary to skilled labor. Many countries, by importing a large share of their capital, import skill-biased technology and a rise in the skill premium. In this paper we develop a...

We study the implications of trade liberalizations on real GDP and real consumption in a widely-used class of models in international trade. We calculate the change in aggregate quantities in response to a reduction in international trade costs, following as closely as possible the procedures...

What are the consequences of international trade on income inequality---measured as the relative wage of skilled to unskilled workers, the skill premium? To address this question we formulate a multi-country model of international trade that introduces skill intensity differences across firms...

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