Population sorting and human capital accumulation
构建了一个两区域增长模型，分析人口分类（迁移）如何通过影响人力资本积累进而作用于经济增长，并探讨公共政策在自由迁移导致人力资本下降时的干预效果。
Abstract This article analyses the effect of population sorting on economic growth. The analysis is performed in a two-region growth model with endogenous fertility, in which public knowledge spillovers from the more advanced core amplify the productivity of investment in children’s human capital in the periphery. I show how migration affects the inter-temporal evolution of human capital in each of the regions and the economy as a whole. I discuss how public policy interventions can help increase the per-capita human capital levels, if free uncontrolled migration leads to a reduction in human capital accumulation. I also analyse how migration and public policy interventions may affect population growth.