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Climate change, migration, and irrigation

Théo Benonnier, Katrin Millock () and Vis Taraz
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Théo Benonnier: ENS Cachan - École normale supérieure - Cachan
Vis Taraz: Smith College

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Abstract: Climate change will affect both international and internal migration. Earlier work finds evidence of a climate-migration poverty trap: higher temperatures reduce agri- cultural yields, which in turn reduce emigration rates in low-income countries, due to liquidity constraints. We test whether access to irrigation modulates the climate- migration poverty trap, since irrigation protects crops from heat. We regress measures of international and internal migration on decadal averages of temperature and rain- fall, interacted with country-level data on irrigation and income. We find that irri- gation access significantly weakens the climate-migration poverty trap, demonstrating the importance of considering alternative adaptation strategies when analyzing climate migration.

Keywords: International migration; Rural-urban migration; Climate change; Agriculture; Irrigation (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-agr, nep-dev, nep-env and nep-mig
Date: 2019-04
Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-02107098
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