产业集聚、空间溢出与区域创新效率——以长江经济带为例

创新是国家发展第一动力，产业集聚是提升区域创新效率的关键途径之一，研究二者关系有利于优化产业空间布局和完善区域创新政策。本文基于2009 ~ 2018年长江经济带108个地级市全产业数据，运用数据包络分析（DEA）等方法揭示长江经济带区域创新效率时空演变特征，其次建立空间计量模型，利用多种空间矩阵分析产业专业化、多样化集聚对区域创新效率影响的空间溢出效应。结果表明：①总体来看，长江经济带区域创新效率先上升后下降，具有阶段性特征；②产业专业化、多样化集聚对区域创新效率均具有显著的正向影响；③从溢出效应来看，多样化集聚对经济水平相近地区的区域创新效率具有更强的促进作用。因此，长江经济带城市群应加快发展产业专业化、多样化集聚，提高欠发达区域经济发展水平，促进多样化集聚对相邻区域创新效率的扩散作用。

Industrial Agglomeration, Spatial Spillover and Regional Innovation Efficiency: A Case Study of Yangtze River Economic Belt

Innovation is the first driving force of national development, industrial agglomeration is the key factor to promote the development of regional innovation. Based on the whole industry data of 108 prefecture level cities in the Yangtze River Economic Belt from 2009 to 2018, this paper uses data envelopment analysis (DEA) and other methods to reveal the spatial-temporal evolution characteristics of regional innovation efficiency. Secondly, it establishes a spatial econometric model to analyze the spatial spillover effect of industrial specialization and diversified agglomeration on regional innovation efficiency. The results show that: (1) on the whole, the regional innovation efficiency of the Yangtze River economic belt first rises and then declines, with the characteristics of stages; (2) industrial specialization and diversified agglomeration have a significant positive impact on the regional innovation efficiency; (3) from the perspective of spillover effect, diversified agglomeration has a stronger role in promoting the regional innovation efficiency of the adjacent areas. Therefore, it is recommended that downstream areas actively take advantage of the balance of development between regions, adopt a mixed mode of coexistence of multiple industries, and strive to build a modern metropolitan area; central cities in the midstream and upstream areas should focus on the diversified cluster of industries, and small cities should fully Give full play to its own resource advantages and enhance the level of industrial specialization and agglomeration.