When a Doctor Falls from the Sky: The Impact of Easing Doctor Supply Constraints on Mortality
通过尼日利亚的随机实验，发现向社区派遣医生能显著降低死亡率，而增加中级医疗人员则无此效果，表明医疗质量是重要约束。
This paper describes the results of a policy experiment conducted in coordination with the Nigerian government. In this experiment, some communities were randomly selected to receive a new doctor. These doctors were posted to the local public health center. Prior to their arrival, health care was provided by midlevel health-care providers (MLP). To separate the effect of (ostensibly higher) quality from that of quantity, another group of communities was provided with an additional midlevel provider. A third group of communities received no additional workers. No other inputs were provided. I find a measurable decrease in mortality in communities assigned a doctor but not in communities assigned an MLP, suggesting that quality in the health-care sector is a significant constraint.