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Cai, Ruohong
Feng, Shuaizhang
Pytlikova, Mariola
Oppenheimer, Michael
Year of Publication: 
Series/Report no.: 
IZA Discussion Papers 8183
While there is considerable interest in understanding the climate-migration relationship, particularly in the context of concerns about global climatic change, little is known about underlying mechanisms. We analyze a unique and extensive set of panel data characterizing annual bilateral international migration flows from 163 origin countries to 42 OECD destination countries covering the last three decades. We find a positive and statistically significant relationship between temperature and international outmigration only in the most agriculture-dependent countries, consistent with the widely-documented adverse impact of temperature on agricultural productivity. In addition, migration flows to current major destinations are especially temperature-sensitive. Policies to address issues related to climate-induced international migration would be more effective if focused on the agriculture-dependent countries and especially people in those countries whose livelihoods depend on agriculture.
international migration
climate variability
agricultural productivity
Document Type: 
Working Paper

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