长三角 G60 科创走廊建设的技术扩散效应研究

Innovative factors tend to exhibit pronounced geographical clustering. Amidst growing uncertainties in international economic and technological competition and the accelerated transformation of China's domestic economic model, a crucial challenge is to effectively promote the diffusion and transfer of high-quality scientific achievements, thereby achieving high-level technological self-reliance. This paper examines the spatio-temporal evolution of technological diffusion within strategic emerging industries in the Yangtze River Delta. Building on this foundation, and grounded in the Chinese government's strong commitment to innovation-driven development, the study empirically investigates the impact of the G60 Science and Technology Innovation Corridor on regional technology diffusion and its underlying mechanisms. The results show that: (1) The breadth and depth of technology diffusion within the study area continue to expand, following an evolutionary shift from single-centre to multi-centre interactions, with cities along the G60 Innovation Corridor occupying a dominant position. (2) The development of the G60 Innovation Corridor significantly enhances the technological diffusion capacity of cities along its route, particularly in developed cities such as Shanghai and Hangzhou. (3) Mechanism analysis indicates that the corridor primarily promotes regional technological diffusion through three channels: strengthening strategic government guidance, enhancing economic agglomeration (high-tech enterprises and talent), and optimizing the innovation environment (transport infrastructure, financial supply, and openness to external markets). (4) Further analysis reveals that while the corridor facilitates the diffusion of applied and proprietary technologies among enterprises, it does not appear to significantly improve technology transfer from universities and research institutions to enterprises. These findings not only deepen our understanding of how cross-regional collaborative innovation policies, exemplified by the G60 Innovation Corridor, contribute to the high-quality diffusion of scientific and technological achievements, but also provide valuable policy implications for future design.