International Trade, Technology, and the Skill Premium
研究了国际贸易如何影响技能溢价，发现贸易成本降低会通过行业间和行业内要素再配置，在几乎所有国家提高技能溢价。
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 in trade costs reallocate factors toward a country's comparative advantage sectors, increasing the skill premium in countries with a comparative advantage in skill-intensive sectors and decreasing it elsewhere. Reductions in trade costs also reallocate factors toward more productive and skill-intensive firms within sectors and toward skill-intensive sectors in all countries, increasing the skill premium in all countries. Quantitatively, we find that trade liberalization increases the skill premium in almost all countries.