基于内生创新溢出的企业低成本产品定位与定价博弈分析

Game Analysis Based on Positioning-pricing of Product Based on Endogenous Innovation Spillovers

通过引入一类企业的有效创新贡献水平函数,应用三阶段博弈模型分析了创新溢出内生时双寡头企业的产品定位和定价决策问题。研究发现,双寡头企业产品的均衡定位是功能非替代率的增函数;企业间的产品差异随功能非替代率的增大而增加,内生溢出却随之增大而减小;如果从两企业均衡定位处稍微减小它们之间的差异程度,则产业利润将减少,而社会福利是否减小与单位产品的功能非替代率的取值有关。

A kind of firms＇ effective innovation efforts function is introduced and the duopoly positioning-pricing of low-cost product is analyzed by using a three stage game when innovation spillovers are endogenous. We find that the equilibrium position of duopoly is increasing functions of the function non-substitutive rate. And the product difference between firms increases with the function non-substitutive rate , but the endogenous spillovers decrease with it. Industrial profits decrease with a slight decrease in the product difference between firms from their equilibrium position. However, whether the total social surplus decrease or not depends on the size of function non-substitutive rate.