Insurance and Medical List Prices
提出一个定价模型，利用全国医生调查数据估计保险对医疗价格的影响，发现重新设定模型并使用新数据后，保险对价格的估计影响大幅增加。
Although there is general agreement that insurance has played a central role in medical price inflation, this consensus is not based on convincing empirical evidence. Indeed, the best available estimates assign insurance a minor role. This paper begins by proposing a simple pricing model in which providers' profit maximizing prices depend on the market shares and cost control strategies of different insurers. Data from a recent national survey of physicians are then used to estimate fee elasticities for this model and to compare its implications with those of an alternative proposed by Sloan (1982). Respecification plus more recent data dramatically increase the estimated impact of insurance on prices