产业协同集聚对绿色创新效率的影响研究--基于空间溢出视角

Impact of Collaborative Industrial Agglomeration on Green Innovation Efficiency From Perspective of Spatial

本文基于2006—2019年中国285个地级市面板数据,采用时空双重固定空间杜宾模型系统地考察了产业协同集聚对绿色创新效率的影响。研究发现,产业协同集聚和绿色创新效率均具有明显的空间集聚特征。产业协同集聚不仅显著地提升了本地区城市绿色创新效率,还对邻近地区产生空间溢出效应。但空间溢出效应具有地理衰减特征,在312.2千米以内为空间溢出区域,687.2千米为空间溢出的地理阈值。产业协同集聚对绿色创新效率的空间影响存在时间异质性、区域异质性和行业异质性。在服务业综合改革试点前,产业协同集聚对绿色创新效率无影响;在服务业综合改革试点后,产业协同集聚不仅提升了本地区绿色创新效率,而且也产生了空间溢出效应;东部地区存在虹吸效应,中部地区存在涓滴效应,西部地区既不存在虹吸效应也不存在涓滴效应;不同类型生产性服务业与制造业协同集聚均能辐射邻近地区,中低端生产性服务业与制造业协同集聚并不能直接影响本地区绿色创新效率,但高端生产性服务业与制造业协同集聚可以显著提升本地区绿色创新效率。本文为进一步优化中国产业区域布局、提升城市绿色创新效率提供了决策参考。

Accelerating the construction of ecological civilization and seeking a“harmonious symbiosis”between economic development and the environment is not only an inherent need for China to take the road of sustainable development,but also a responsibility for China to actively respond to environmental challenges and improve the well‑being of the people.At the same time,with further specialization of China’s industrial division of labor,located at both ends of the value chain,the productive service industry has gradually divested from the manufacturing industry,and evolved into the new business form driven by both productive service industry and manufacturing industry,not only profoundly changing China’s industrial spatial layout,but also accelerating the extension of the value chain,restructuring and upgrading as a whole.However,it remains to be further verified whether synergistic agglomeration can promote green innovation efficiency.Based on the data of 275 prefecture‑level and above cities in China from 2006 to 2019,this paper systematically examines the impact of collaborative industrial agglomeration on urban green innovation efficiency from the perspective of spatial spillover by using the spatial Durbin model.It is found that both collaborative industrial agglomeration and green innovation efficiency in China are characterized by obvious spatial agglomeration.Collaborative industrial agglomeration not only significantly improves local green innovation efficiency,but also generates spatial spillover effects on neighboring regions.However,the spatial spillover effect is characterized by geographic attenuation,with 312.2 km as the intensive spatial spillover area and 687.2 km as the geographic threshold of spatial impact.The spatial impact of collaborative industrial agglomeration on green innovation efficiency is temporally heterogeneous,regionally heterogeneous and industrially heterogeneous.Before the implementation of the Comprehensive Pilot Program for Modern Service Industry,collaborative industrial agglomeration has no promotion effect on green innovation efficiency,and the pilot policy has a spatial spillover effect after its full promotion.There is a siphon effect in the eastern region,a trickle‑down effect in the central region,and no siphon and trickle‑down effects in the western region.Different types of productive services and manufacturing industries have spatial spillover effects on neighboring regions,and the collaborative agglomeration of low‑end and middle‑end productive services and manufacturing industries does not directly affect local green innovation efficiency,but the matching of high‑end productive services and manufacturing industries can significantly improve local green innovation efficiency.