Impeerfect Intersectoral Labour Mobility and Welfare in International Trade
构建了一个通用就业成本模型，分析贸易条件冲击下工人在产业间流动的障碍，并比较均衡与社会最优迁移模式，发现不同流动成本导致迥异的福利效应和政策建议。
This paper sets out a general ‘costs‐of‐employment’ model by which to analyse the impediments to relocation faced by workers who must choose between industrial sectors in response to a terms of trade shock. Different types of employment cost generate different types of relocation cost. The theoretical literature on intersectoral labour relocation in international trade models is reviewed in the light of this model with various special cases analysed in detail. Special attention is given to the comparison between equilibrium and socially efficient patterns of migration. Different specifications of relocation costs lead to very different welfare effects and policy prescriptions.