基于政府采购数据的长江中游城市群网络特征与影响机制  

Network Structure and Influencing Factors of City-Government-Enterprise Linkages in the Middle Reaches Yangtze River Urban Agglomeration

作　　者：雷菁[1,2] 钟业喜 Lei Jing;Zhong Yexi(School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,China;Key Laboratory of Poyang Lake Wetland and Watershed Research Ministry of Education,Nanchang 330022,China)

机构地区：[1]江西师范大学地理与环境学院,南昌330022 [2]鄱阳湖湿地与流域研究教育部重点实验室,南昌330022

出　　处：《热带地理》2025年第3期399-409,共11页Tropical Geography

基　　金：国家自然科学基金项目(42361050);江西省社会科学“十四五”基金项目(22YJ12);江西师范大学长江经济带高质量发展选题“长江经济带城市网络韧性评估及其优化策略研究”。

摘　　要：深入刻画政企关联网络有助于理解政府和企业关联隐含下的城市经济互动并有利于推动区域经济一体化发展。基于长江中游城市群政府采购数据,运用社会网络分析探究城市群政企关联城市网络的格局特征,并通过负二项回归模型从邻近性和城市属性视角探究其影响因素。研究发现:长江中游城市群采购方式以公开招标为主,地理距离衰减的阻滞效应对采购方式产生影响;省会城市是长江中游城市群政府采购网络中的主导,武汉和长沙的最强联系指向明显,九江在网络中的桥梁作用较为突出;长江中游城市群的联系以子城市群内部联系为主,跨省域的联系较弱,承担“经纪人”角色的板块四发挥了中介作用促进关系在整体网络中的连接和传导;长江中游城市群政企关联网络受到邻近性和城市属性的影响,经济邻近、组织邻近、财政支出和市场环境起促进作用,地理距离和经济规模对城市网络起负向作用。As economic globalization and informatization continue to advance and regional integration develops,interregional urban relations are being reconfigured by various mobile elements.Based on complex network theory,academics have conducted numerous studies on the network structure of urban agglomerations using relational and flow data,such as economy,trade,human mobility,and enterprise branching.However,there are fewer urban networks based on the perspective of government and enterprise linkage,and an in-depth portrayal of government-enterprise linkage networks helps to understand the urban economic interactions implied by the government-enterprise linkage and promote the development of regional economic integration.The study of government-business networks can help elucidate the economic interactions between cities implied by government and business linkages and promote regional economic integration.The pattern characteristics of city networks of government-enterprise linkages in urban agglomerations are explored using social network analysis based on government procurement data of the city agglomerations in the Middle Yangtze Urban Agglomeration,and the influencing factors are explored from the perspectives of proximity and city attributes through a negative binomial regression model.We found that:the procurement method of the city cluster in the Middle Yangtze Urban Agglomeration is dominated by public tendering,and the blocking effect of geographical distance affects the procurement method;the provincial capital city is the dominant city in the government procurement network of the Middle Yangtze Urban Agglomeration,with Wuhan and Changsha pointing to the obvious most wanted link,and Jiujiang playing a more prominent role as a bridge in the network;the linkage of the Middle Yangtze Urban Agglomeration is dominated by the linkage within the subcities,the linkage across the provinces and regions is weak,and Jiujiang plays the role of"broker."The"broker"role of the plate four and take the role of intermediary to pr

关 键 词：政企关联 城市网络 长江中游城市群 流空间理论 邻近性 块模型 

分 类 号：K902[历史地理—人文地理学]