关键词: 过度医疗, 预算约束, 激励性规制

Abstract: Excessive medical treatment has negative effects on the overall social and economic development. This paper takes the suppliers and the demanders excessive medical treatment into a framework of budget constraint, and studies the inner logic and the transfer mechanism in it. The result shows that the cause of China's excessive medical problems stems from changes in the external environment that leads to the hardening of the budget constraints of medical service providers and changes the behavior of related groups in the supply side, thus produces motivation to maximize medical income. The changes enables the medical service demander to soften budget constraint and have freedom choice based on it, thus produces motivation to maximize medical benefits. The problem of excessive medical governance is essentially the principalagent and mechanism design issue under asymmetric information conditions. Therefore, incentive regulation based on excessive medical governance is a breakthrough to effectively solve the problems.

Key words: Key words: excessive medical treatment, budget constraint, incentive regulation