摘要
在发展城市群和加快建设全国统一大市场的政策导向下,以京津冀、长三角、珠三角、成渝及长江中游城市群为样本,基于百万条原始数据整理得到五大城市群2010—2018年的经济要素流动网络,采用多期双重差分模型检验国家级城市群规划对要素跨省流动的影响。研究结果表明:(1)城市群规划显著促进了技术、资本、人口要素的跨省流动;(2)城市群规划促进技术、资本要素跨省流动的中介机制是降低城市间的市场分割程度以及缩小城市间的市场制度差异,但这两个机制对于人口要素不显著;(3)城市间信息要素流动规模越大,城市群规划越能提升其他经济要素的流动规模;(4)国家级城市群规划有利于技术和资本要素的跨省双边流动,但加剧了人口要素的单向“虹吸”。据此,各级政府应当坚持以人为本的原则,充分重视城市文化的辐射能力,积极推动区域间市场一体化,更好地培育、发展国家级城市群。
The Outline of the 14th Five-Year Plan(2021-2025)for National Economic and Social Development and Vision 2035 of the People’s Republic of China suggests“promote the coordinated development of large,medium-sized,and small cities and small towns that make up urban clusters and metropolitan areas.”The economy of urban clusters,which play an important role in China’s current urbanization process,depends on the free flow of economic factors within the urban clusters,and the planning for national urban clusters is a representative measure taken by the Chinese central government to break through the obstacle from local administrative boundaries,as well as the practical basis for the construction of a national unified market.However,few scholars test the promotion effect of the planning for national urban clusters on the inter-provincial flow of economic factors with the quantitative policy evaluation method,and there is a lack of mechanism studies from the perspective of market integration.Based on the Chinese Research Data Services(CNRDS),China Stock Market Accounting Research(CSMAR),China Migrants Dynamic Survey(CMDS),and Baidu Search Index,we manually sort out millions of directly observed data from 2010 to 2018,and build the networks of technology,capital,population and information flow of every two cities of the five major Chinese urban clusters,namely,the Beijing-Tianjin-Hebei urban cluster,the Yangtze River Delta,the Pearl River Delta,the middle reaches of the Yangtze River and the Chengdu-Chongqing urban cluster.Based on the network data,we test the influence of the planning for national urban clusters on the inter-provincial factor flow with the multi-stage difference-in-differences(DID)method.Guided by the policy of building a unified national market in China,we explore the economic mechanism of the planning for national urban clusters from the perspective of market integration.The research results of this paper are as follows.(1)The planning for national urban clusters significantly promotes the inter-provincial flow of technology,capital,and population.(2)The two mechanisms of the planning for national urban clusters promoting the inter-provincial flow of technology and economic factors are to reduce the segmentation and institutional discrepancy of regional markets,respectively,but the above mechanisms are not significant for population flow.(3)When the scale of information flow between cities is larger,the planning for national urban clusters can promote the inter-provincial flow of other economic factors more considerably.(4)The planning for national urban clusters is beneficial to the two-way flow of technology and capital,but aggravates the one-way flow of population.Compared with existing studies,our research makes the following contributions.Firstly,we build the networks of economic factor flow between cities based on the huge amount of directly observed data.Compared with the gravity model commonly used in the study of economic factor flow,our data have advantages in accuracy and information amount.Secondly,we test the influence of the planning for national urban clusters on the inter-provincial economic factor flow with a brand-new theoretical mechanism of market integration.Thirdly,by further testing the moderating effect of information flow and the influence of the planning for national urban clusters on the direction of factor flow,we make a further evaluation of the planning for national urban clusters.Our research,to a certain extent,reveals the benefits of planning for national urban clusters to the market integration,inter-provincial flow of economic factors,and construction of urban clusters.It helps the government departments further formulate,promote and optimize plans for inter-provincial urban clusters,so as to promote the regional harmonious development,allocation efficiency of factors,and sound development of new urbanization based on urban clusters.At the same time,this paper also helps government departments gather experience for the construction of a unified national market in the process of regional market integration.
作者
王家庭
姜铭烽
WANG Jiating;JIANG Mingfeng(Research Center of China Urban and Regional Economies,Nankai University,Tianjin 300071,China)
出处
《当代经济科学》
CSSCI
北大核心
2023年第1期119-129,共11页
Modern Economic Science
基金
国家社会科学基金一般项目“我国区域塌陷的多维测度、形成机制与治理模式研究”(21BJL057)
天津市研究生科研创新项目“综合流视角下的城市群演化、协同与边界效应——以我国五大城市群为例”(2021YJSS003)
南开大学文科发展基金项目“实施扩大内需战略同深化供给侧结构性改革有机结合研究”(ZB21BZ0207)。
关键词
区域经济
城镇化
城市群
要素流动
边界效应
regional economy
urbanization
urban clusters
factor flow
boundary effect
