Research On The Structure And Evolution Of Industry-University-Institute Collaborative Innovation Network In Chinese New Energy Vehicle Industry

Rapid economic development has brought environmental challenges.As a new means of transportation,new energy vehicle has attracted the attention of all countries in the world with their good resource conversion efficiency and environmental protection ability.China has also begun to accelerate the layout of strategic emerging industries and guide the sound development of the new energy vehicle industry.The development of new energy vehicle industry is inseparable from scientific and technological innovation.Compared with independent innovation,collaborative innovation has better effect.As the transformation results of collaborative innovation,collaborative patent data is often used to construct innovation networks to study the effect of Industry-University-Institute collaborative innovation by scholars.The research based on the collaborative patent data of the whole industry chain of Chinese new energy vehicle from 2001 to 2020.And it constructs the I-U-I collaborative innovation network of Chinese new energy vehicle industry with social network analysis method.The network applies innovation subject as the node,the cooperative relationship as the edge,and the number of cooperation as the weight.The research makes an empirical analysis of network structure from four aspects: network overall structure characteristics,network centrality,network aggregation and network structure holes.Then,based on the network growth curve fitted by Gompertz model,the network evolution process is divided into six stages.And the research deeply discusses the evolution process of the network from three aspects: overall network index,individual network index and condensed sub-group.After revealing the characteristics of the whole network and individual network from the external level,the research also study the evolution mechanism of network from the perspective of endogenous driving factors.In this paper,QAP regression is used to explore the driving mechanism of geographical,social and institutional proximity on network evolution.Finally,the paper draws research conclusions from three aspects : network structure,network evolution process and evolution driving mechanism.Based on the conclusions,the paper puts forward suggestions for the development of the I-U-I collaborative innovation network of Chinese new energy vehicle industry,such as identifying potential innovation subjects,exploring the cooperation potential between innovation subjects and promoting the role of key nodes in the network.In this paper,the research not only has theoretical significance for enriching the theoretical study of the collaborative innovation network and improving structure and function of Chinese new energy vehicle industry collaborative innovation network,but also has realistic significance in helping innovative subjects to breakthrough development bottleneck,increase innovation performance,and enhance the international competitiveness of Chinese new energy vehicle industry.