Neighborhood Sanitation and Infant Mortality
研究印度穆斯林婴儿存活率高于印度教徒的谜题，发现优势来自社区而非家庭，且与环境卫生外部性有关。
In this paper, we shed new light on a long-standing puzzle: in India, Muslim children are substantially more likely than Hindu children to survive to their first birthday, even though Indian Muslims have lower wealth, consumption, educational attainment, and access to state services. Contrary to the prior literature, we show that the observed mortality advantage accrues not to Muslim households themselves but rather to their neighbors, who are also likely to be Muslim. Investigating mechanisms, we provide a collage of evidence suggesting externalities due to poor sanitation are a channel linking the religious composition of neighborhoods to infant mortality.