摘要
现有文献大多从静态视角探讨了城市网络外部经济效应,但城市网络发展是一个动态演化过程,在不同演化阶段城市网络对区域经济增长与技术进步的影响存在差异。为此,本文以制造业网络为研究对象探讨城市网络空间演化的阶段性变化特征及其对区域经济增长的影响,揭示区域政策协同影响城市网络演化的逻辑机理,提出了城市网络演进的地域化和全域化两种形态。本文基于中国19个城市群数据的实证分析发现:①城市网络空间范围取决于城市互动成本与网络外部收益之间的比较,随着城市互动成本降低,城市网络会从地域化阶段逐步演进到全域化阶段。②区域政策协同提高了区域市场一体化水平,降低了城市互动成本,促进了城市网络空间演化和外部经济效应的发挥。③当前中国不同地区城市网络发育水平呈现出较大差异性,绝大多数地区城市网络处于地域化阶段,全域化网络发育水平较低。虽然两种网络联系均能促进地区经济增长,但当前地域化网络外部效应对中国区域经济发展水平的影响更大。未来要推进城市群内和城市群间双重政策协同,以促进城市网络演化,充分发挥城市网络外部效应的作用。
The externalities of urban networks have gradually become a significant focus in literature.Most existing studies examine the economic effects of urban network externalities from a static perspective.However,the development of urban industrial networks are dynamic processes.A single city typically starts by interacting with nearby cities and then gradually expands its economic ties to more distant ones.Thus,the spatial form of urban networks may initially be localized before evolving into a more comprehensive network.The impact of urban networks on regional economic growth and technological progress can vary at different stages of evolution.Existing literature has not adequately addressed this question.Moreover,urban network research has developed several main lines,including transportation networks,knowledge information networks,personnel flow networks,goods trade networks,and producer service networks,but there is limited research on manufacturing networks.Therefore,this article focuses on manufacturing networks to explore the phased changes in the evolution of urban network space and their impact on regional economic growth.We first construct a theoretical framework for the evolution of urban network space,elucidate the logical mechanisms by which regional policy coordination influences urban network evolution,and propose two spatial forms of urban network evolution called localized and globalized networks.Then,using data from 19 urban agglomerations,the study calculated the internal and external network centrality indicators of cities,providing a statistical description of the characteristics of China’s urban networks.Based on this,it examined the impact of localized and globalized network externalities on regional economic growth.The findings are as follows:1)The scope of urban network space depends on the trade-off between urban interaction costs and network externalities.Initially,a single city interacts economically with nearby cities,forming a local network.As urban interaction costs decrease and the economic interaction space expands,the urban network evolves into a global network stage.2)Regional policy coordination enhances market integration,reduces urban interaction costs,and strengthens urban economic interactions,significantly influencing the evolution of urban network space and the external economic effects.3)There is a significant disparity in the development levels of urban networks across different regions in China.In most areas,urban network evolution remains at the localization stage,while the development of global networks is still relatively low.Although both localization and globalization can significantly boost regional economic growth,the external effects of local networks currently have a greater impact on China’s regional economic development.These findings have strong policy implications,suggesting that future efforts should focus on promoting dual policy coordination within and between urban agglomerations to facilitate the evolution of urban networks and fully leverage their external effects.
作者
赵祥
郝家明
Zhao Xiang;Hao Jiaming(Party School of the Guangdong Provincial Committee of the Communist Party of China,Guangzhou 510053,Guangdong,China;Guangdong Research Center for Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era,Guangzhou 510053,Guangdong,China;School of Management,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China)
出处
《地理科学》
北大核心
2025年第8期1768-1781,共14页
Geographical Science
基金
国家社会科学基金项目(20BJL107)资助。
关键词
城市网络演化
地域化网络
全域化网络
双重政策协同
urban network evolution
localized network
globalized network
dual policy coordination
