Village sanitation and child health: Effects and external validity in a randomized field experiment in rural India
通过印度农村的随机对照试验，发现村庄卫生干预使儿童身高年龄标准差提高约0.3，并探讨了效果差异与外部有效性。
Over a billion people worldwide defecate in the open, with important consequences for early-life health and human capital accumulation in developing countries. We report a cluster randomized controlled trial of a village sanitation intervention conducted in rural Maharashtra, India designed to identify an effect of village sanitation on average child height, an outcome of increasing importance to economists. We find an effect of approximately 0.3 height-for-age standard deviations, which is consistent with observations and hypotheses in economic and health literatures. We further exploit details of the planning and implementation of the experiment to study treatment heterogeneity and external validity.