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长三角城市数字经济发展测度及时空演变研究 被引量:4

Research on the Development Measurement and Spatial-Temporal Evolution of Urban Digital Economy in the Yangtze River Delta
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摘要 首先,本文基于城市层面构建数字经济发展水平测度指标体系,并基于长三角41个城市的面板数据,运用熵值法测度其数字经济发展水平,结果表明:长三角城市数字经济整体呈现蓬勃发展趋势,但城市间出现三个梯队不均衡发展态势。其次,运用泰尔指数法考察长三角城市数字经济发展的时间演变,结果发现其差异性和非均衡性整体上逐渐改善,且非均衡早期主要表现为区域间明显的差异,2018年之后转变为区域内差异占主导地位,这种差异结构变化主要源于政府和社会数字化的发展演变。再次,运用自然间断点分级法、局部莫兰指数法和时空跃迁测度法分析长三角城市数字经济发展总体水平的空间异质性,同时运用耦合度模型和kernel密度估计法考察长三角省际与省内数字经济发展的空间关联性,结果发现,长三角城市数字经济发展存在空间上不充分和不平衡的特征,这种空间分布的不均衡特征主要源于数字经济四个维度在当前发展阶段的相对重要性差异;分别归属于4种空间关联模式的长三角城市数字经济分布差异呈现出总体稳定、局部跃迁的“金字塔形”,“三省一市”间数字经济发展尚处在严重失调的“拮抗阶段”,各省内差异亦有不同程度两极分化现象。最后,根据上述分析提出相应对策建议。 First of all,the measurement index system of urban digital economic development was constructed,and the entropy method was used to measure their digital economy development based on the panel data of 41 cities in the Yangtze River Delta.The results showed that the digital economy of cities in the Yangtze River Delta booms as a whole,but there is an unbalanced development trend of three echelons among cities.Secondly,theil index was used to investigate the time evolution of the digital economic development of cities in the Yangtze River Delta.The results showed that its differences and disequilibrium were gradually improving as a whole.Meanwhile,the early stage of disequilibrium was mainly manifested in the obvious differences between regions.After 2018,however,such disequilibrium changed,indicating that regional differences were dominant.This structural change of these differences mainly stemmed from the evolution of government and social digitalization.Thirdly,the spatial heterogeneity of the overall level of digital economic development in Yangtze River Delta cities was analyzed by using Jenks Natural Breaks Classification,local Moran’s I and spatiotemporal transition measurement method.The spatial correlation of digital economic development between provinces and within provinces in Yangtze River Delta was investigated by using the coupling degree model and the kernel density estimation method.The results showed that digital economic development in Yangtze River Delta cities was characterized by spatial inadequacy and imbalance,and this uneven spatial distribution was mainly due to the difference in the relative importance of the four dimensions of the digital economy at the current stage of development.The distribution differences of the digital economy in cities in the Yangtze River Delta,which belong to four spatial correlation modes respectively,showed a“pyramid shape”featuring overall stability and local transition.The development of the digital economy among Shanghai,Zhejiang,Jiangsu and Anhui was s
作者 章秀琴 施旭东 ZHANG Xiu-qin;SHI Xu-dong(School of Economics and Management,Anhui Polytechnic University,Wuhu,China,241000)
出处 《财经理论研究》 2023年第1期19-34,共16页 Journal of Finance and Economics Theory
基金 教育部人文社会科学研究规划基金项目(21YJA790081) 安徽省教育厅高校人文重大项目(SK2020ZD20) 安徽省哲学社会科学规划项目(AHSKY2020D38)。
关键词 长三角 数字经济发展 城市面板数据 测度 时空演变 Yangtze River delta digital economic development urban panel data measurement spatiotemporal evolution
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