成渝城市群创新网络空间结构演化及优化策略研究——基于社会网络分析法

随着信息化时代的到来以及全球分工的进一步推进,城市网络已然成为区域创新研究的重要视角。本文以成渝城市群为分析对象,以该区域内16个地级市间联合专利为分析变量,借助社会网络分析法构建了该地区近10年来的创新网络,并借助点度中心度、接近中心度、凝聚子群分析、网络密度等指标方法对该网络组织框架及其演进过程进行了可视化分析。研究发现在考察期内:(1)网络密度不断提升,形成了以成都为绝对核心,重庆、宜宾、绵阳等多次中心的网络结构;(2)节点城市间网络地位相差较为悬殊,创新资源、创新能力相差较大;(3)内部子群数量逐渐减少,成员间合作模式日益成熟。

Research on Spatial Structure Evolution and Optimization Strategy of Innovation Network in Chengdu-Chongqing Urban Agglomeration ——Based on Social Network Analysis

With the advent of the information age and the further advancement of the global division of labor,urban network has become an important perspective for regional innovation research.Then,this paper takes Chengdu-Chongqing urban agglomera?tion as the object,takes the joint patents of 16 prefecture-level cities in the region as the analysis variables,constructs the innova?tion network of the region in the past decade with the help of social network analysis,and visually analyzes the organizational frame?work and evolution process of the network with the help of index methods such as degree centrality,closeness centrality,cohesive subgroup analysis,and network density.The study finds that during the study period:(1)network density continues to increase,forming a network structure with Chengdu as the absolute core,Chongqing,Yibin,Mianyang and other multiple centers;(2)the network status between node cities is quite different,innovation resources and innovation ability are quite different;(3)the num?ber of internal subgroups is gradually decreasing and the mode of cooperation among members is becoming more mature.