基于技术外溢性的寡头垄断企业研发投资的动态博弈分析

在现代经济社会条件下，企业通过合作研发可以使研发的外部效应内部化，激励企业进行更多的研发活动。同样，合作企业可以共享信息和研究成果，提高研发效率。本文将结合企业研发投资过程中的实际情况，在假定技术不完全独占即存在技术溢出的情况下，通过构建一个两阶段寡头博弈模型对寡头垄断企业R＆D进行研究，比较寡头垄断企业在合作研发与非合作研发两种情况下研发投入、产出、社会福利的变化，从中探求合作研究的原因。

An Dynamic Game Analysis of R&D Investment of Oligopoly Corporate Based on Technology Spillover

In the modern economic and social conditions, the enterprises through the cooperative R ＆ D may cause the external effect internalized, so that it encourages the enterprise to carry out more R ＆ D investment. Similarly, the cooperative enterprises can share information and research findings to improve tile efficiency of R ＆ D. This paper will combine R ＆ D investment in the process of the actual situation supposing the technology being not completely monopoly. By building a two - stage game model, comparing cooperative R ＆ D with non - cooperative R ＆ D, it analyses the oligopoly corporate R ＆ D and the changes of R ＆ D inputs, outputs, social welfare.