水资源优化配置中的市场交易博弈模型

Study of market transaction game model in water resources optimal allocation

提出了一种把用水权和排污权结合起来的水市场交易方案.该方案首先根据一定流域内用水者的用水权、排污权的初始分配不同,用水过程中水资源的利用率、节水成本、治污成本等不同,从而导致其用水效益不等的状况,建立了以水资源社会总效益最大为目标的完全信息动态博弈模型,随后基于逆向归纳法求出此模型的子博弈精炼纳什均衡解,得到用水者在水市场中可行的最优交易方案.该方案综合考虑了用水者的用水权和排污权,充分利用市场机制来优化配置水资源,算例表明了模型具有可行性.

A transaction scheme of unifying water right and drainage right in water market is proposed. According to the condition of the users＇ water using benefit was unequal because the initial allocation for the users＇ water right and drainage right was different, utilization ratio of water resources, water saving cost and pollution control cost etc. were different in the course of using water in a certain valley, the scheme founded dynamic game model of complete information taking the most optimal social income of water resources as the goal, then gained the optimum solutions of the sub-game refining Nash equilibrium of the model using backward induction and optimum transaction scheme for users in water market. This scheme considered not only water right but also drainage right, made the best of market mechanism to optimize allocation of water resources. The conclusion of example indicated the scheme＇s realistic feasibility.