Spatio-temporal evolution characteristics of China's new energy vehicle industry collaborative innovation network
Basing on the patent data of the new energy vehicle industry from 2000 to 2018,this paper divided the stages of innovation development of the new energy vehicle industry and con-structed a collaborative innovation network from the perspective of the industrial chain,and ana-lyzed the spatial structure from the perspective of the city to explore the temporal and spatial evolution characteristics of the collaborative innovation of the new energy vehicle industry.The results show that:(1)The scale and intensity of collaborative innovation of the new energy vehi-cle industry have increased significantly from the initial stage,to the formation stage,then to the growth stage,but it always occupies a low proportion in the overall innovation,innovation vitali-ty has not been fully released,and there is still a large space for industrial innovation develop-ment.(2)The collaborative innovation of industrial chain is unbalanced,and the innovation in the midstream accounts for the majority of the overall innovation.The focus of collaborative in-novation is transitive from the upper and middle streams to the middle and lower streams,and the innovation subjects present an overall pattern dominated by enterprises,supplemented by uni-versities and research institutes.(3)Urban collaborative innovation is characterized by scale ex-pansion,association complexity,regional integration and the innovation pattern presents multi-point dispersion and local agglomeration.The innovation transfer and evolution path of new en-ergy vehicle industry has taken shape.
China's new energy vehiclescollaborative innovationspatio-temporal evolutioninnovation network
万方数据
维普
