Skill Dispersion and Trade Flows
利用国际成人识字调查微观数据，发现技能分布更分散的国家在工人技能互补性较低的行业具有比较优势，其影响与人力资本总量相当。
Is skill dispersion a source of comparative advantage? In this paper we use microdata from the International Adult Literacy Survey to show that the effect of skill dispersion on trade flows is quantitatively similar to that of the aggregate endowment of human capital. In particular we investigate, and find support for, the hypothesis that countries with a more dispersed skill distribution specialize in industries characterized by lower complementarity of workers' skills. The result is robust to the introduction of controls for alternative sources of comparative advantage, as well as to alternative measures of industry-level skill complementarity.