| As a form of spatial economic organization,industrial cluster is not only a strategic force to promote regional economic development,but also an important means and way to participate in global competition.The concept of innovation network provides a new research perspective for the development of industrial clusters,and the research achievements of cluster innovation network become more and more abundant.American scholar Markusen puts forward to some cluster spatial organization of some enterprises,other enterprises around its axle formation,these enterprises is known as the leadership,the role of leading enterprises in the cluster innovation has been made in academia,but research has neglected the leading enterprise growing impact on the evolution of the cluster innovation network,especially ignored the cluster innovation network evolution of different spatial scales.In addition,in different development stages of cluster innovation network,the mechanism that affects its evolution is different.Therefore,this article focuses on the special perspective of leading enterprises with special status in the cluster,and takes the Taizhou automobile industry cluster as the research object to construct the theoretical framework of the influence of leading enterprises on the evolution of the endogenous industrial cluster innovation network,including the innovation network structure model,The evolution characteristics and dynamic mechanism of the innovation network at different stages.In addition,the collected patent data of Taizhou automobile industry from 2000 to 2019 are used to conduct empirical research with the help of UCINET and Arc GIS software,and the influence of Geely Automobile on the evolution of innovation network of Taizhou automobile industry cluster is studied from two aspects,namely,the topology structure of innovation network and the spatial structure of innovation network.The results show that Geely Automobile influences the structural evolution of cluster innovation network.Under the influence of Geely Automobile,the development of the cluster innovation network is characterized by stages.The network topology has changed from the original "one-to-many" cooperative connection to the coexistence of "triangle network" and "spider network",and the patent cooperative network has gradually developed into a complex one.The "core-periphery" structure of the innovation network is becoming more and more obvious.Zhejiang Geely Holding Group,as the core node,plays a leading role in the center radiation and becomes the preferred object of innovation cooperation in the network.Some other types of cooperation are scattered in the peripheral areas,and the marginalization trend is obvious.As a whole,the innovation network has formed a "core-to-edge" structure with Zhejiang Geely Holding Group as the core.Geely Automobile influences the network space evolution of cluster innovation.Under the influence of Geely Auto,the occurrence of cluster innovation activities is not limited to Taizhou City,but the regional scope of innovation cooperation gradually extends to Zhejiang Province,the whole country and the whole world.At the regional level,innovation activities have expanded from the initial concentration in Taizhou city to Taizhou,Hangzhou,Ningbo,Jinhua,Jiaxing and other cities,and the level of innovation has also become stronger from the weak.From the national level,from the initial "dual core" space distribution pattern to the "dual core","core" of the spatial distribution pattern of innovation cooperation are mainly distributed in the eastern city,central city distribution is less,the western region city few presents from east to west cooperation level significantly decreasing trend;On a global scale,innovation cooperation has been transformed from nothing to nothing.The dynamic mechanism of innovation network evolution changes dynamically in different stages.The formation of cluster innovation network is influenced by geographical proximity,organizational proximity,heterogeneous resource integration,knowledge innovation demand and strategic network.In the initial stage of innovation network formation,geospatial agglomeration provides a prerequisite for the formation of cluster innovation network.In the period of rapid development of innovation networks,cluster innovation networks gradually break through geographical boundaries,and organizational proximity and heterogeneous resource integration drive play more important roles.At the stage of innovation transformation,under the joint drive of knowledge innovation demand and strategic network,leading enterprises gradually establish the "global-local" connection channel and realize the globalization of innovation network. |
