The Interaction between Forms of Insurance Contract and Types of Technical Change in Medical Care
用一个三参数模型描述医疗技术，分析技术变革、福利与保险合同类型的关系，发现技术变革的价值取决于合同形式，且保险安排缓解道德风险的方式影响消费者对不同技术变革的边际期望效用。
A simple three-parameter description of medical technology is introduced to investigate the relationships between technical change, welfare, and type of insurance contract. The value of a particular change in technology depends on the existing form of contract. The marginal equilibrium expected utility to consumers of different types of technical change hinges on the manner in which the insurance arrangement is designed to mitigate moral hazard. These results open the way for a positive model of the effects of insurance arrangements on the types of technology that are adopted and the effects of technical changes on the prevalent forms of insurance contract.