Religion and beliefs in the supernatural are present in all societies. Yet, studies about the spread of small-scale supernatural belief systems remain quite limited. In this work, we test the anthropological hypothesis that historical dependence on pastoralism favored the adoption of customs...

We present evidence on the impacts of a large-scale iodine supplementation program in Tanzania on individuals' long-term economic outcomes. Exploiting the timing and location of the intervention, we document that in utero exposure to the program increased completed years of education and income...