Is Fish Brain Food or Brain Poison? Sea Surface Temperature, Methyl-Mercury and Child Cognitive Development

  title={Is Fish Brain Food or Brain Poison? Sea Surface Temperature, Methyl-Mercury and Child Cognitive Development},
  author={Mark R. Rosenzweig and Rafael J. Santos},
  journal={ERN: Latin America \& the Caribbean (Development) (Topic)},
We exploit variation in the composition of local fish catches around the time of birth using administrative and census data on adult cognitive test scores, schooling attainment, and occupation among coastal populations in Colombia to estimate the causal effects of early-life consumption of methylmercury (MeHg) and DHA, elements contained in fish, on cognitive development. Using an IV strategy based on an equilibrium model of fish supply that exploits time-series variation in oceanic SST… 
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