Technology and the Global Economy
回顾了基于概率论解释个体异质性如何连接个体与总体行为，并讨论这些假设如何为静态和动态均衡模型提供统一框架，对研究国际贸易和全球经济的学者有参考价值。
Interpreting individual heterogeneity in terms of probability theory has proved powerful in connecting behavior at the individual and aggregate levels. Returning to Ricardo's focus on comparative efficiency as a basis for international trade, much recent quantitative equilibrium modeling of the global economy builds on particular probabilistic assumptions about technology. We review these assumptions and discuss how they deliver a unified framework underlying a wide range of static and dynamic equilibrium models.