产品差异化对创新激励的影响研究——基于技术外溢的视角分析  

The research on the impact of product differentiation to innovation incentives——base on spillovers

作　　者：乔芳丽[1] 侯强[1] 

机构地区：[1]沈阳工业大学管理学院,辽宁沈阳110870

出　　处：《科学学研究》2012年第4期608-613,共6页Studies in Science of Science

基　　金：中国博士后基金项目(20070421054);沈阳工业大学博士启动基金(007143)

摘　　要：构建了技术外溢条件下存在产品差异化时双寡头垄断企业R&D投资和产量决策的模型,这一模型是AJ模型的拓展,旨在分析产品差异化程度和技术外溢程度对企业R&D投资和产量决策影响。分析了完全不合作、半合作、完全合作三种状态下企业的决策行为,并通过敏感性分析和不同状态的对比分析,研究了不同的差异化程度和技术外溢程度组合条件下企业的决策行为对创新投入、企业利润和社会福利的影响,最后据此提出了相应的创新激励的政策建议。We construct a duopolistic RD investment and production decision model subject to knowledge spillovers and product differentiation.This model is an extension to the symmetric model of d＇Aspremont and Jacquemin and aims to analysis the influence of product differentiation and the spillover effect levels on decision of RD investment and production.The paper analyses this influence in three modes which include the non-cooperative mode,the RD cooperation mode and the monopolistic collusion mode.From the sensitivity analysis and the contrast analysis among different state,the paper reaches a conclusion that the impact on enterprise＇s decision from society incentive and profit incentive is decided by the level of product differentiation and spillovers.

关 键 词：创新管理 博弈 最优化 技术外溢 产品差异化 

分 类 号：C93[经济管理—管理学]