An Elementary Theory of Global Supply Chains
构建了一个包含多国、一种生产要素、连续中间品和一种最终品的全球供应链基础理论模型，分析自由贸易均衡下各国按犯错概率在垂直生产阶段中的专业化分工，揭示垂直专业化如何塑造国家间的相互依赖。
This article develops an elementary theory of global supply chains. We consider a world economy with an arbitrary number of countries, one factor of production, a continuum of intermediate goods and one final good. Production of the final good is sequential and subject to mistakes. In the unique free trade equilibrium, countries with lower probabilities of making mistakes at all stages specialize in later stages of production. Using this simple theoretical framework, we offer a first look at how vertical specialization shapes the interdependence of nations. Copyright , Oxford University Press.