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Matching and Inequality in the World Economy
This paper develops tools and techniques to analyze the determinants of factor allocation and factor prices in economies with a large number of goods and factors. The main results of our paperExpand
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An Elementary Theory of Global Supply Chains
This paper develops an elementary theory of global supply chains. In spite of its simplicity, our theory is consistent with a number of stylized facts and able to deliver a rich set of predictionsExpand
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International Trade, Technology, and the Skill Premium
What are the consequences of international trade on the skill premium? We incorporate skill-intensity differences across firms and sectors into a standard model of international trade. Reductions inExpand
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Importing Skill-Biased Technology
Capital equipment - such as computers and industrial machinery - embodies skill-biased technology, in the sense that it is complementary to skilled labor. Most countries import a large share of theirExpand
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Are there Counterexamples to the Closure Principle
A person can’t know a proposition without knowing various logical consequences of that proposition, and knowledge is closed under known logical implication. Expand
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Tradability and the Labor-Market Impact of Immigration: Theory and Evidence from the U.S
In this paper, we show that labor-market adjustment to immigration differs across tradable and nontradable occupations. Theoretically, we derive a simple condition under which the arrival ofExpand
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Accounting for Changes in Between-Group Inequality
We perform a quantitative analysis of observed changes in U.S. between-group inequality between 1984 and 2003. We use an assignment framework with many labor groups, equipment types, and occupationsExpand
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Comparative Advantage and Optimal Trade Policy
The theory of comparative advantage is at the core of neoclassical trade theory. Yet we know little about its implications for how nations should conduct their trade policy. For example, shouldExpand
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Spatial Competition with Heterogeneous Firms
I model endogenous horizontal and vertical product differentiation with arbitrarily many heterogeneous firms. Firms are asymmetric in that they differ in their marginal costs. I prove that under anExpand
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Globalization, Technology, and the Skill Premium: A Quantitative Analysis
We construct a model of international trade and multinational production (MP) to examine the impact of globalization on the skill premium in skill-abundant and skill-scarce countries. The keyExpand
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