中文摘要：

我国公立医院长期处于垄断地位,缺乏改进服务及降低费用的压力,导致＂看病贵、看病难＂问题较为严重。利用霍特林模型分析了在价格受到管制、地理位置对称的双寡头医疗市场上,医院差异化目标对服务质量、利润水平以及总体福利的影响。研究结果表明,混合寡占的均衡价格低于私立寡占而高于公立寡占,这一中间价格会挫伤更低效率的医院提供过高质量的积极性,鼓励更有效率的医院提升质量水平,并且在公立医院具有巨大成本优势时,整体福利水平会接近最优。因此,建议大力推进公立医院产权改革,把效率较低的公立医院直接改制为民营医院,同时保留效率较高的公立医院;还可以把效率较高的私立医院转变为公立医院,进而形成有效竞争的混合寡占市场结构。

英文摘要：

Public hospitals in China have long been in monopoly, without pressure of improving service and reducing cost. This leads to the difficulty and expense of medical service, which has been suffering from social criticism.Using a Hoteling framework,this paper analyses the effect of heterogeneous objectives of the hospitals on quality differentiation, profits, and overall welfare in price regulation duopoly with exogenous symmetric locations.It shows that a mixed duopoly outperforms both a private and a public duopoly due to an equilibrium price below （above） the price of the private （public） duopoly. This medium price discourages over provision of quality of the less efficient hospital and encourages an increase in quality of the more efficient public hospital. Furthermore, In the case that the public hospi- tal has a big cost advantage, mixed duopoly can only reach the first-best. Therefore, this paper suggests promoting the reform of property right of hospital,directly transforming the less efficient public hospital to private hospital, while retaining more efficient public hospital and transforming the more efficient private hospital into public hospital to form effective competition mixed oligopoly.