长三角城市群创新效率测算及其空间异质性分析

Analysis of Innovation Efficiency Measurement and Spatial Heterogeneity of the City Cluster in the Yangtze River Delta

基于区域创新系统理论,借助两阶段串联链式DEA方法与ESDA空间分析方法,对长三角城市群41个城市2010-2018年的综合创新效率、两阶段创新效率及其空间异质性进行分析,研究表明:创新成果转化阶段效率高于创新成果产出阶段效率与综合创新效率;综合创新效率由创新成果产出阶段效率与创新成果转化阶段效率共同决定;长三角城市群综合创新效率在空间上表现为正的空间自相关性,且具有显著的空间异质特征,H-H集聚区多为长三角城市群东部城市,且范围不断扩大,各城市空间依赖性较强,其热点分布呈现"核心-外围-边缘"形态。基于此,从持续推进两阶段协调高效发展、积极培育自主创新能力、科学发展差异化创新模式等方面提出提升长三角城市群创新效率的建议。

Based on the theory of regional innovation system,comprehensive innovation efficiency,two-stage innovation efficiency and spatial heterogeneity of 41 cities,a city cluster in the Yangtze River Delta,are analyzed by using two-stage series chain DEA method and ESDA spatial analysis method.The results show that:1)Innovation efficiency in the transformation stage is higher than that in the output stage and comprehensive innovation efficiency;2)Comprehensive innovation efficiency is determined by the efficiency in the output stage and that in the transformation stage.3)Comprehensive innovation efficiency of the city cluster in the Yangtze River Delta is spatially shown as positive spatial self-correlation,and is featured with significant spatial heterogeneity,and the H-H cluster area lies mostly in the eastern cites in the Yangtze River Delta,and the coverage is expanding.The spatial dependence of each city is strong,and its hotspot distributes in the pattern of"core-peripheral-edge"form.Therefore,to improve innovation efficiency of the city cluster in the Yangtze River Delta,some suggestions are put forward,including continuously promoting coordinated and efficient development in the two stages,actively cultivating independent innovation capacity and establishing differentiated innovation models.