An Inquiry into the Heterogeneous Outcomes of International Migration: Evidence from Rural Households in Bangladesh
研究了孟加拉国农村移民家庭因迁移经历不同（时长、强度、历史）导致的投资行为差异，发现不同群体在物质和人力资本投资上呈现相反模式，平均效应可能掩盖这些异质性。
There are considerable differences in the duration, intensity, and history of migration experiences among migrant households. The variation can have a significant effect on their investment behaviour. We classify our sample households in Bangladesh into four groups depending on the history and stage of migration and estimate its differential effect on physical and human capital investment. The results show that the patterns of investment are distinct between the groups and even of opposite directions in some cases. These heterogeneous effects often cancel each other out, leading to insignificant effects of migration when the average effect on all migrant households is estimated.