基于SNA的区域创新产出空间关联网络结构演变

The Spatial Linkage Network Structure of Regional Innovation Output—Based on the Social Network Analysis

基于修正的引力模型和社会网络分析法,结合GIS可视化,分析2000—2014年区域创新产出空间关联网络结构的演变特征。研究表明:(1)全国层面的网络密度低,主要源于西部地区较弱的创新联系。"多中心驱动"网络正逐渐形成,但网络的空间结构极不稳定,大致形成领导子群、桥梁子群、净受益子群及孤立子群四种小团体。(2)分区域层面的网络密度与创新产出均呈显著的东—中—西梯级差异,东中部地区网络中心密集,西部地区缺乏中心,陕西和四川有潜力成为西部地区的创新增长极。基于实证结论,从优化创新网络结构的角度提出政策建议。

It analyzes the spatial linkage network structure of regional innovation output during 2000-2014 by using the modified Gravity Model, Socail Network Analysis and GIS visualization. Studies have shown that： The whole network density is still low because of sparse linkage in Western China. ＂Multi-centers driven＇network are gradually forming but unstable, the leadership subgroup,the bridge subgroup,the only-profits subgroup and the isolation subgroup are taking shape; Remarkable cascade differences are presented in the three major areas,centers gather ineastem and central regions, the western region lack of center, Shaanxi and Sichuan has the potential to become the western region＇s innovative growth poles. Based on empirical findings, policy recommendations are proposed to optimize the innovation network structure.