This paper combines 172 Demography and Health Survey data sets from 70 countries to estimate the effect of water and sanitation on child mortality and morbidity. The results show a robust association between access to water and sanitation technologies and both child morbidity and child...

Early life shocks result in physiological changes that allow infants and children to adapt to surrounding environments. We examine the implications of one form of biological adaptation - immune system learning - for human capital formation. Using two case studies, where interventions to reduce...