长三角城市群中心性效应与一体化提升  

The Centrality Effect and Integration Promotion of the Yangtze River Delta Urban Agglomerations

作　　者：方大春 牛黎光 Fang Dachun;Niu Liguang

机构地区：[1]安徽工业大学商学院,马鞍山243032 [2]安徽工业大学科研处,马鞍山243032 [3]中国区域经济学会

出　　处：《区域经济评论》2020年第6期111-118,共8页Regional Economic Review

基　　金：教育部人文社会科学规划基金项目“高质量发展背景下长江经济带产业布局优化研究”(19YJA790010);安徽省哲学社会科学规划重大项目“安徽深度融入长三角更高质量一体化发展研究”(AHSKZD2018D06);安徽高校协同创新项目“安徽深度融入长三角跨界协同治理”(GXXT-2019-039)。

摘　　要：随着城市间经济联系日益加深,节点城市在城市群网络中的中心性地位将会发生变化,城市中心性效应对长三角城市群一体化影响也会发生变化。基于2008—2017年长三角城市群面板数据,运用社会网络分析方法测度城市中心度,建立动态面板模型,分析城市群中心性的经济效应。研究得出:点度中心度系数显著为正,表明城市对外直接联系能力促进经济增长;接近中心度系数显著为负,表明城市处于边缘化地位制约经济增长;中间中心度系数显著为正,表明城市处于中介地位促进经济增长;城市化和对外开放度对城市经济增长有着显著的正向影响,产业结构合理化则有着显著负向的影响,产业结构高级化对能级较低城市有显著负向的影响,对能级较高城市表现为显著促进作用。长三角城市还处在提升其中心性地位的竞争阶段,长三角城市群一体化任重道远。为此,优化产业布局,避免产业结构同构;完善交通设施建设,打通区域一体化交通网络;推进公共服务一体化,实现等高交融对接;整合要素一体化,构建区域价值链;以长三角整体利益为目标,加快构建跨区域利益协调机制。With the deepening of the economic relationship between cities,the central position of node cities in the urban agglomeration network will change,and the urban centrality affects the integration in the Yangtze River Delta Urban Agglomerations Will be changed.Based on the panel data of Yangtze River Delta Urban Agglomerations from 2008 to 2017,the social network analysis method is used to measure the urban centrality,and a dynamic panel model is established to analyze the economic effects of urban agglomeration centrality.The study concluded that the degree centrality coefficient is significantly positive,indicating that the ability of city's direct contact with the outside world promotes economic growth;the coefficient of closeness centrality is significantly negative,indicating that the marginalization of cities restricts economic growth;the coefficient of betweenness centrality is significantly positive,indicating that a city's role as an intermediary promotes economic growth;urbanization and the degree of openness have a significant positive impact on urban economic growth,while the rationalization of industrial structure has a significant negative impact;the upgrading of industrial structure has a significant negative effect on the cities with lower energy levels,and a significant positive effect on the cities with higher energy levels.The cities in the Yangtze River Delta are still in the competitive stage to enhance their centrality,and the integration of the Yangtze River Delta Urban Agglomerations has a long way to go.Therefore,optimize industrial layout to avoid the isomorphism of industrial structure;improve the construction of transportation facilities to open up the regional integrated transportation network;promote the integration of public services and realize the integration of contour and height;integrate the elements to build a regional value chain;accelerate the construction of cross-regional interest coordination mechanism for the interests of the whole in the Yangtze River Delta.

关 键 词：长三角城市群 中心性效应 一体化 社会网络分析 GMM 

分 类 号：F061.6[经济管理—政治经济学]