Historical migration and contemporary health

Thomas Andersen, Carl-Johan Dalgaard, Christian Volmer Skovsgaard and Pablo Selaya

Oxford Economic Papers, 2021, vol. 73, issue 3, 955-981

Abstract: We argue that migration during the last 500 years induced differences in contemporary health outcomes. The theory behind our analysis builds on three physiological facts. First, vitamin D deficiency is directly associated with higher risk of all-cause mortality. Second, the ability of humans to synthesize vitamin D from sunlight (UV-R) declines with skin pigmentation. Third, skin pigmentation is the result of an evolutionary compromise between higher risk of vitamin D deficiency and lower risk of skin cancer. When individuals from high UV-R regions migrate to low UV-R regions, the risk of vitamin D deficiency rises markedly. We develop a measure that allows us to empirically explore the aggregate health consequences of such migration in a long historical perspective. We find that the potential risk of vitamin D deficiency induced by migration during the last half millennium is a robust predictor of present-day aggregate health indicators.

JEL-codes: I1 J1 J15 (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (2)

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