Econ Papers Daily / 期刊论文
制度实验：政府主导的创新走廊如何重塑城市群协同创新行为
An institutional experiment: how China’s government-led innovation corridor reshapes collaborative innovation behaviour within urban agglomerations
摘要
China is conducting a large-scale institutional experiment by positioning innovation corridors as a key policy instrument for high-quality development within urban agglomerations. Using China’s pioneering G60 Innovation Corridor as a case study, this paper examines the impact of corridor development on inter-city collaborative innovation within the urban agglomeration, drawing on joint invention patent data in strategic emerging industries. The G60 Innovation Corridor significantly enhances collaborative innovation among cities along its route, increasing both the extensive and intensive margins of inter-city collaboration and strengthening collaboration among different types of innovation actors. Heterogeneity analysis shows that the corridor strengthens cooperation among developed cities and promotes cross-tier linkages between developed and relatively underdeveloped cities, thereby exhibiting a ‘hub-and-spoke’ pattern. Further analysis shows that the corridor’s effects on innovation linkages beyond the corridor vary across the urban hierarchy, with stronger effects for city pairs involving developed cities and a significantly weaker effect for linkages between relatively underdeveloped cities inside and outside the corridor. In addition, high-speed rail connectivity strengthens the spillover effects of the corridor on collaborative innovation.
中文摘要
中国正在开展一项大规模制度实验，将创新走廊定位为城市群高质量发展的关键政策工具。本文以中国首创的G60创新走廊为案例，基于战略性新兴产业联合发明专利数据，考察走廊建设对城市群内部城际协同创新的影响。G60创新走廊显著增强了沿线城市间的协同创新，既提升了城际合作的广延边际和集约边际，也强化了不同类型创新主体之间的合作。异质性分析表明，走廊加强了发达城市之间的合作，并促进了发达城市与相对欠发达城市之间的跨层级联系，从而呈现出“中心—外围”模式。进一步分析表明，走廊对走廊之外创新联系的影响在城市层级间存在差异，涉及发达城市的城市对效应更强，而走廊内相对欠发达城市与走廊外相对欠发达城市之间的联系效应显著较弱。此外，高铁连通性强化了走廊对协同创新的溢出效应。