长三角城市群协同创新网络演化及形成机制研究——依存型多层网络视角

基于依存型多层网络视角，利用2009—2018年长三角城市群产学研协同创新联合申请专利数据，构建包括合作网络、知识网络和城市-知识元素隶属网络在内的多层网络，探究长三角城市群协同创新网络结构特征演化，构建ERGM模型研究长三角城市群协同创新网络形成机制的内在、外在影响因素。结果表明，长三角城市群协同创新水平不断提升但仍处于弱联结状态；协同创新网络空间由“三足鼎立”格局向“多中心、多层次、趋平衡”格局转变；协同创新能力不断增强，技术领域出现空间聚集，各城市在不同领域各有侧重发展；协同创新网络形成受地理同配性、知识独特性和结构嵌入的影响，合作关系更倾向于中介2-路径结构。

Research on the Evolution Trend and Mechanism of Collaborative Innovation Network in the Yangtze River Delta

Based on the perspective of interdependent network,this paper constructs the multilayer network including collaborative network,knowledge networkand affiliation network connecting cities to knowledge elements,to analyse structure characteristics and evolution trend of the collaborative innovation network.In addition,the formation mechanism of collaborative innovation network in urban agglomeration in the Yangtze river delta is also analyzed in this paper by establishing ERGM.Using the data of industry-university-research institutes joint patent application in urban agglomeration of Yangtze river delta from 2009 to 2018,we find that:the level of collaborative innovation in the Yangtze river delta has been constantly improved,but still in weak connection.The cyberspace pattern of collaborative innovationnetwork has shifted from "three pillars" pattern to"multi-core,multi-level and balanced" pattern.With the continuous enhancement of collaborative innovation ability,technology field appears spatial aggregation,and each city has different emphases on development.The formation of collaborative innovation network is influenced by geographic homphily,knowledge uniqueness and structure embedding,and the cooperative relationship is more inclined to the intermediary 2-path.