双寡头动态R&D竞合模型的构建与分析  

Building and Analysis of Duopoly's Dynamic R&D Competition and Cooperation Model

作　　者：胡荣[1] 夏洪山[1] 

机构地区：[1]南京航空航天大学民航学院,江苏南京210016

出　　处：《数学的实践与认识》2011年第22期44-51,共8页Mathematics in Practice and Theory

基　　金：南京航空航天大学引进人才科研基金(1007-YAH10025)

摘　　要：放松了经典Cournot模型中市场容量不变的假设,构建了双寡头企业R&D动态竞争的Cournot模型,研究了双寡头在R&D投入和产量决策两个阶段完全竞争与完全合作情形下的均衡结果.结果表明增加新增市场容量可以提高企业的最佳R&D投入水平和均衡利润,并且可以维持更长久的博弈周期.结果还表明动态R&D竞争模型是对传统模型的进一步拓展,能适用于更广泛、更实际的竞争情形.By modified the hypothesis that the market capacity was fixedness in the tradi- tional Cournot model; the duopoly＇s dynamic R＆D competition model is established. The paper analyzed the equilibrium results of noncooperation and cooperation during the R＆D stage and output stage in one competition period. The results show that increment of new market capacity can increases the optimal R＆D level and profits, and also can create more competition periods. The dynamic R＆D competition model is extension to the traditional one, and it could apply to more practical competition cases.

关 键 词：R&D竞争 合作关系 市场容量 博弈论 

分 类 号：O242.1[理学—计算数学]