Social Experimentation and Social Experimentation
通过随机实验数据，估计了患者自付比例（成本分摊）对医疗服务需求的影响，发现灾难性保险计划相比零自付可减少31%的医疗支出。
We estimate how cost sharing, the portion of the bill the patient pays, affects the demand for medical services. The data come from a randomized experiment. A catastrophic insurance plan reduces expenditures 31 percent relative to zero out-of-pocket ...