研发的双重效应和技术创新:基于自动机模型的演化分析  

Dual Role of R & D and Technology Innovation:Evolutionary Analysis Based on Cellular Automata Model

作　　者：祝树金[1] 赖明勇[1] 

机构地区：[1]湖南大学经济与贸易学院,长沙410079

出　　处：《系统工程理论方法应用》2005年第5期467-472,共6页Systems Engineering Theory·Methodology·Applications

基　　金：国家自然科学基金资助项目(70273010);国家社会科学基金重点资助项目(04AJL006)

摘　　要：新增长理论和实证研究表明,企业内部研发具有双重性:它不仅直接促进了技术进步,同时也增强了对扩散技术的吸收和学习。基于研发的双重效应,建立一个技术创新扩散的随机元胞自动机模型,应用于技术创新扩散的复杂性研究。仿真实验结果表明,内部研发和网络外部性对技术创新率的作用表现为“S”型曲线的特征。企业内部研发的提高可以加速技术创新,缩短经济起飞的时间,并且增强了均衡状态下经济系统创新的稳定性。New growth theory and empirical study have shown that in-house R ＆ D has the dual role. It not only generates new information, but also enhances the firm＇s ability to assimilate and exploit the technology spillovers. Based on two faces of R＆D, we put forward a cellular automata model to investigate the complexity of the innovation diffusion of economic system in the long run. The simulation results show that the roles of in-house R＆D and network extemality on the average rate of innovators in the economic system own the characteristics of the ‘S＇ curve. Increasing the level of in-house research may shorten the take-off phase of the economy and improve the stability of the long run level of innovation rate.

关 键 词：技术创新 复杂性 研发 自动机 

分 类 号：F204[经济管理—国民经济] N93[自然科学总论]