基于产品差分、合作研发的古诺竞争与伯川德竞争均衡效率比较分析  

Comparison between Equilibrium Efficiencies of Cournot Competition and Bertrand Competition based on the Cooperative R&D and Product Differentiation

作　　者：戴菊贵[1] 王伟[2,3] 

机构地区：[1]温州大学商学院,浙江温州325035 [2]景德镇陶瓷学院工商学院,江西景德镇333403 [3]中南财经政法大学金融学院,武汉430073

出　　处：《软科学》2012年第9期20-23,共4页Soft Science

基　　金：教育部人文社会科学青年基金项目(11YJC790031);温州文化研究工程项目(Wyk11009)

摘　　要：研究表明,不管是否进行合作研发,古诺竞争下的研发投入不低于伯川德竞争下的研发投入。在合作研发条件下企业的研发投入随产品差分度而递增;当产品差分度越低,研发溢出效应越大,古诺竞争均衡比伯川德竞争均衡更有效。而且,与不合作研发相比,合作研发提高了古诺均衡比伯川德均衡有效的可能性。Results show that investment of R＆D in Cournot competition is not lower than that in Bertrand competition and that whether cooperative R＆D is conducted or not makes no difference. On the condition of cooperative R＆D, the more product differentiation is, the more investment of cooperative R＆D is needed; the lower product differentiation is, the larger the spillover effect of R＆D is. Therefore, Cournot equilibrium is more efficient than Bertrand equilibrium. Besides, R＆D cooperation can increase the possibility of occurrence of the above case.

关 键 词：古诺竞争 伯川德竞争 合作研发 产品差分 均衡效率 

分 类 号：F260[经济管理—国民经济]