技术创新网络结构演变模型:基于网络嵌入性视角的分析

技术创新网络是当代技术创新过程组织的主要形式.技术创新网络结构随着外部创新企业的加入、网络内部企业间关系的增加和内部企业间关系的重新生成而发生演变.本文从网络嵌入性的测度出发,考察了技术创新网络的结构变化,导出网络企业合作关系数目变化的微分方程,引入时间刻画,求出了技术创新网络结构特征的演变方程.研究表明：（1）技术创新网络不是缩小而是拉大了企业合作关系数目的差距; （2）技术创新网络结构演变的不均衡性为技术创新提供了更多机会.

A Evolutionary Model for Techno-innovation Network Structure: Analysis from the Viewpoint of the Embeddedness of Network

Techno-innovation network is the main organization type to fulfill the techno-innovation.Its structure evolves with the participation of venture enterprises from outside the network and the increase and restructure of inter-enterprise(relation) within the network.This study started from the measurement of embeddedness of network,examined the structural changes in techno-innovation network,and deduced a differential equation of numerical variation in co-operative(relation) between enterprises within the same network.Then by introducing time measurement,it worked out the evolution equation of characteristic parameters of techno-innovation network structure.This study clearly shows:(1) Techno-(innovation) network widens,rather than bridges,the gap between enterprises in co-operative relation number,thus leading to a growing gap between venture enterprises in status;(2) The non-equilibrium of evolution of techno-innovation network structure brings greater probability of more techno-innovation opportunities.