中国技术转移枢纽及其网络腹地的时空演化

Technology transfer is an important way to enhance regional knowledge diversity and foster technological innovation hubs. However, there are relatively few studies on the spatial evolution complexity and evolution law of technology transfer hubs. Therefore, this paper develops a theoretical framework of technology transfer hubs based on WENA and Ht-index, empirically revealing the spatio-temporal dynamics of technology transfer hubs and their hinterworlds in China from 2004 to 2018. The results are obtained as follows: (1) Technology transfer hubs have the triple characteristics of hierarchy, spatial polarization, functional balance and complementarity. They are high- level technology transfer nodes with the function of agglomeration and diffusion in the national innovation system, mainly located in coastal cities such as Beijing, Shanghai, Shenzhen and Guangzhou. (2) The hierarchical system has a stable "pyramid" structure, showing a dual pattern of constancy and mutability, and their evolution has significant place dependence and spatial stickiness. In addition, hubs of technology transfer out and in exhibit bipolar and multi- center dominant spatial patterns, respectively. (3) Technology transfer hubs with dual functions of diffusion and agglomeration are the predominant type, electrical, chemical and mechanical engineering are the most dominant categories, and shows the evolution mode from dual-sector to multi-sector dominance. Overall, the evolution of technology transfer hubs is divided into three stages: functional separation in the initial stage, functional integration in the development stage, and functional synergy in the mature stage. (4) Hinterworlds of technology transfer hubs display the duality of significant expansion and competition, presenting a two- way expansion mechanism of core- periphery, forming three differentiated hinterworlds evolution patterns of progressive expansion (from inside to outside), jumping expansion (alternating inside and outside) and progressive contraction (from outside to inside).