港口企业双寡头价格质量博弈分析

A port duopoly game model for price and quality competition

在港口服务质量差异化和地理位置差异化的前提下,结合港口产业非完全竞争的市场结构性质,构建了一个港口双寡头两阶段博弈模型,其中第1阶段双方进行服务质量的博弈,第2阶段在双方服务质量给定的情况下进行价格博弈,同时对港口质量竞争和价格竞争进行了分析.分析结果表明,双方都会选择自己所能提供的最优质量,均衡价格和利润都与质量差异相关.

Based on the assumption of the existence of the differentiations in service quality and geographical location among port enterprises, and in consideration of the oligarch monopolistic market structure of port industry, a duopoly two-stage game model was constructed to analyze the competition between two ports in service quality and price. During the first stage, the game analysis was performed on their service quality, and during the second stage, the game analysis was performed on their service price under the same quality of service. Furthermore, the competition between the two ports in service quality and price was analyzed. The results showed that both of two ports would try to provide the best service, and that the prices and profits of the nash equilibrium were related to the quality differentiation.