incorporating optimizing behavior to uncover the hidden costs of arsenic poisoning in Bangladesh. We provide for the first time …We exploit recent molecular genetics evidence on the genetic basis of arsenic excretion and unique information on … estimates of the effects of the ingestion and retention of inorganic arsenic on direct measures of cognitive and physical …

This paper provides estimates of the effects of in utero exposure to contaminated drinking water on fetal health. We …

Previous research in the US has found negative health effects of contamination when it triggers regulatory violations …. An important question is whether levels of contamination that do not trigger a health-based violation impact health. We … results data in Pennsylvania. We create an overall water quality index and an index specific to reproductive health. We focus …

identify a causal effect of prenatal lead exposure on fetal health. We find robust evidence of adverse health impacts, which …

The 1994 discovery of arsenic in groundwater in Bangladesh prompted a massive public health campaign that led 20% of … contamination. We find evidence of unintended health consequences by comparing mortality trends between households in the same … water sources have 46% higher rates of child mortality than those not encouraged to switch. Switching away from arsenic …

Management has a large effect on the productivity of large firms. But does management matter in micro and small firms … Bangladesh, Chile, Ghana, Kenya, Mexico, Nigeria and Sri Lanka. We show that variation in business practices explains as much of … the variation in outcomes – sales, profits and labor productivity and TFP – in microenterprises as in larger enterprises …

examine the impact of mergers on a large set of outcomes including financial performance, productivity, waiting times and …