网络外部性下基于投资溢出的企业合作研发博弈模型  

Game Model of Cooperative R&D with Network Externality and Input Spillover

作　　者：孟卫东[1] 赵世海[1] 幸昆仑[1] 

机构地区：[1]重庆大学经济与工商管理学院,重庆400044

出　　处：《技术经济》2010年第5期32-36,共5页Journal of Technology Economics

基　　金：国家社会科学基金重点项目(08AJY028)

摘　　要：本文建立了网络外部性环境下基于投资溢出的企业合作研发博弈模型,研究了企业合作研发策略,分析了网络外部性、兼容性以及投资溢出等对企业合作研发动机、企业利润和社会福利等的影响。研究表明,合作研发能提高企业利润和社会福利;兼容性较大或外部性较小时,提高产品外部性会增强企业合作研发意愿;提高兼容性或投资溢出则始终会增强企业合作研发意愿,提高企业利润和社会福利。因此,政府应鼓励企业生产高网络外部性和高兼容性的产品,并增强投资溢出效应,激励企业投入更多研发资源,提高企业利润和社会福利。In this paper,a game model of cooperative R＆D with network externality and input spillover is developed,and enterprises＇ cooperative R＆D policies are studied. The impact of network externality, compatibility and spillover effect on enterprises＇ incentives and profits as well as social welfare are analyzed. It is shown that cooperative R＆D will increase enterprises＇ profits and social welfare;high externality will enhance R＆D incentives and profits of enterprises and social welfare when compatibility is large or externality is small;and high compatibility and input spillover will always enhance them, Therefore,government should encourage enterprises to manufacture products with high network externality and compatibility,and increase input spillover, in order to raise R＆D investment,enterprises＇ profits and social welfare.

关 键 词：网络外部性 兼容性 投资溢出 合作研发 

分 类 号：F224[经济管理—国民经济] F273.7