三大城市群数字技术专利创新网络演化比较研究

Comparative Study on Evolution of Digital Technology Patent Innovation Network in Three Urban Agglomerations

文章基于2010—2020年京津冀、长三角和珠三角三大城市群的数字技术专利数据,综合运用社会网络分析和面板负二项回归模型等方法,比较分析了三大城市群数字技术创新网络的时空演化和影响因素。研究发现:(1)三大城市群数字技术创新网络在主体和城市层面上均呈现网络规模不断扩大、网络结构趋于松散的共性特征,而在主体关联方面则呈现内向化特征,依赖组织间的“隶属关系”。(2)三大城市群数字技术创新网络具有区域分异性,主要体现在城市网络的合作尺度和主体合作模式等方面。其中,京津冀和长三角城市群以全国范围的合作为主,珠三角城市群以本地合作为主;主体合作模式方面,京津冀城市群的国有企业在塑造网络中发挥着重要作用,长三角城市群中民营企业的创新关联作用更强,而珠三角城市群则以本地民营企业合作为主,同时外部高校与本地企业的产学研合作在早期阶段也发挥了关键作用。(3)数字技术可以有效突破地理距离的限制,资本等传统生产要素是数字技术合作网络的重要推手。

Based on the digital technology patent data of the Beijing-Tianjin-Hebei urban agglomeration,the Yangtze River Delta urban agglomeration,and the Pearl River Delta urban agglomeration from 2010 to 2020,this study use the methods of the social network analysis and the panel negative binomial regression model to compare and analyze the spatiotemporal evolution and driving forces of digital technology innovation networks in three urban agglomerations.It shows that:I)The digital technology innovation networks in three urban agglomerations exhibit common characteristics of continuously expanding network scale and increasingly loose network structure at both the organizational and city levels,while showing an inward-oriented feature in terms of organizational relationships relying on"subordination relationships"between organizations.2)The digital technology innovation networks have regional heterogeneity in three urban agglomerations,which is mainly reflected in the cooperation scale and organizational cooperation modes of the urban networks.It focuses on nation-wide cooperation in the Beijing-Tianjin-Hebei urban agglomeration and the Yangtze River Delta urban agglomeration,while it mainly relies on the local cooperation in the Pearl River Delta urban agglomeration.In terms of the cooperation model,state-owned enterprises of the Beijing-Tianjin-Hebei urban agglomeration play an important role in shaping the network,while private enterprises of the Yangtze River Delta urban agglomeration play an stronger role in innovation correlation.The Pearl River Delta urban agglomeration mainly relies on local private enterprise cooperation,and the industry-university-research cooperation between external universities and local enterprises has also played a key role in the early stages.3)Digital technology can effectively break through the limitations of geographical distance,traditional production factors such as capital is the important driving force for technology cooperation networks.