金融资源在城市群的空间集聚与扩散效应:基于新经济地理模型的分析  

The Spatial Agglomeration and Diffusion Effects of Financial Resources in Urban Clusters:An Analysis Based on the New Economic Geography Model

作　　者：肖冬利 肖锐 班琦 XIAO Dong-li;XIAO Rui;BAN Qi(l.Institute of Chinese Financial Studies,Southwestern University of Finance and Economics,Chengdu 611130,China;Postdoctoral Station of Applied Economics,Fudan University,Shanghai 200433,China)

机构地区：[1]西南财经大学中国金融研究院,四川成都611130 [2]复旦大学应用经济学博士后流动站,上海200433

出　　处：《现代财经(天津财经大学学报)》2025年第2期39-54,共16页Modern Finance and Economics:Journal of Tianjin University of Finance and Economics

基　　金：国家社会科学基金重点项目(21AJY002);教育部人文社会科学青年项目(24YJC790197)。

摘　　要：金融资源作为最具流动性的要素,在城市群发展背景下呈现新的空间集聚与扩散规律。本文从微观的城市群空间视角来揭示金融资源的空间集聚与扩散效应。通过构建新经济地理模型,运用多维数值模拟分析金融集聚与扩散规律,采用1991—2022年中国297个地级市数据为样本,运用空间SARAR模型对金融空间外溢模式与边界进行识别。研究发现:(1)城市群及其中心城市金融资源集聚对外围城市具有扩散效应,但存在边际递减;(2)不同城市群中,中心城市对外围城市呈现正负两种相反的空间外溢效应,随着城市群发展,中心城市的空间外溢效应从集聚(虹吸)变为扩散(辐射);(3)四类城市群的金融空间外溢模式随着距离增加、次中心城市出现而分化,呈现四种不同溢出衰减模式;(4)城市群内部的产业分工、一体化水平等因素成为影响区域金融集聚效应的重要机制。本文为金融资源的地理空间集聚规律和机制研究建立了系统的理论分析框架,对促进区域经济一体化与协同发展、经济圈规划建设、因地制宜地规划各区域金融中心具有重要意义。Financial resources,as the most mobile factor,exhibit new spatial agglomeration and diffusion patterns against the backdrop of urban cluster development.This paper reveals the spatial agglomeration and diffusion effects of financial resources from a micro-level perspective of urban clusters.By constructing a new economic geography model and using multi-dimensional numerical simulations to analyze the patterns of financial agglomeration and diffusion,this paper uses data from 297 prefecture-level cities in China from 1990 to 2022.The spatial SARAR model is applied to identify the spatial spillover patterns and boundaries of financial resources.It is found that:(1)The agglomeration of financial resources in urban clusters and their central cities has a diffusion effect on peripheral cities,but there is a marginal diminishing effect;(2)In different urban clusters,central cities exhibit both positive and negative spatial spillover effects on peripheral cities.The spatial spillover effect of central cities shifts from agglomeration(siphoning)to diffusion(radiation),as the urban clusters develop;(3)The financial spatial spillover patterns of the four types of urban clusters differentiate as distance increases and secondary central cities emerge,showing four distinct patterns of spillover attenuation;(4)Factors such as industrial division of labor within urban clusters and the level of integration become important mechanisms influencing the regional financial agglomeration effects.This paper establishes a systematic theoretical framework for the study of the spatial agglomeration patterns and mechanisms of financial resources,and it is of great significance for promoting regional economic integration and coordinated development,economic zone planning and construction,and region-specific financial center planning.

关 键 词：金融地理 城市群 中心—外围 金融集聚 

分 类 号：F832.1[经济管理—金融学]