An Econometric Model of Healthcare Demand With Nonlinear Pricing
建立了一个新模型，用于估计德国社会健康保险中每季度首次就诊共付额对就诊次数的影响，并利用德国社会经济面板数据发现该共付额并未显著影响医疗需求。
From 2004 to 2012, the German social health insurance levied a co-payment for the first doctor visit in a calendar quarter. We develop a new model for estimating the effect of such a co-payment on the individual number of visits per quarter. The model combines a one-time increase in the otherwise constant hazard rate determining the timing of doctor visits with a difference-in-differences strategy to identify the reform effect. An extended version of the model accounts for a mismatch between reporting period and calendar quarter. Using data from the German Socio-Economic Panel, we do not find an effect of the co-payment on demand for doctor visits. Copyright © 2016 John Wiley & Sons, Ltd.