District-level religious composition and child health in India.

Households residing where there are higher levels of religious minorities in India experience worse child survival. These effects are not mediated by the household's own religious affiliation. There is evidence that health system performance and quality is systematically worse in communities with higher proportions of religious minorities. Our study can help policymakers identify communities where children may be at higher risk based on community heterogeneity and the potential for insufficient collective action. Policymakers might consider flagging these communities for special attention, because social heterogeneity is likely to be of long duration.