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Agriculture, irrigation and drought induced international migration: Evidence from Mexico
Global Environmental Change ( IF 8.9 ) Pub Date : 2022-06-20 , DOI: 10.1016/j.gloenvcha.2022.102548
Ram Fishman, Shan Li

There is now substantial empirical evidence that climatic variability increases international migration, but relatively little is known about the mechanism driving the association and about adaptations that may reduce it. We use detailed data on migrants from Mexico to the U.S. to provide evidence in support of the hypothesis that drought induced migration from Mexico to the U.S. is mediated by agricultural income shocks. Migration rates increase in drought years, but only in Mexico’s drier regions, and the response is stronger in states and seasons in which agricultural production is also more sensitive to precipitation. Moreover, among the sample, only farmers display a significant increase in migration rates in drought years, and the effect is substantially weaker for households with access to irrigation.



中文翻译:

农业、灌溉和干旱引发的国际移民:来自墨西哥的证据

现在有大量的经验证据表明气候变化会增加国际移民,但对推动这种关联的机制以及可能减少这种关联的适应机制知之甚少。我们使用关于从墨西哥到美国的移民的详细数据来提供证据来支持这样一个假设,即干旱导致的从墨西哥到美国的移民是由农业收入冲击介导的。迁移率在干旱年份增加,但仅限于墨西哥较干旱的地区,并且在农业生产对降水也更敏感的州和季节的反应更强。此外,在样本中,只有农民在干旱年份的迁移率显着增加,而对于有灌溉条件的家庭来说,这种影响要弱得多。

更新日期:2022-06-21
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