Seasonal Migration and Agricultural Production in Vietnam
研究了1990年代越南农村季节性迁移对农业生产的影响，发现迁移家庭减少水稻种植、转向其他作物，且投入减少，符合从劳动密集型向土地密集型作物转变的趋势。
Abstract When markets are incomplete migration can have multiple effects on agricultural production. I use instrumental variables techniques to explore the effects of seasonal migration on agricultural production in rural Vietnam during the 1990s. Using network variables specific to Vietnam as instruments, I find that migrant households in north Vietnam appear to move out of rice production and into the production of other crops. Inputs used by migrant households decrease relative to similar non-migrant households. The evidence is consistent with a shift from labor intensive into land-intensive crops, rather than productivity changes or the use of additional capital in production.