CAJ | 학술논문

新城市主义的城市网络作为城市关系研究的新范式越来越受到关注。基于珠三角主要金融行业148家企业选址数据，借鉴城市联锁网络模型，实证分析城市网络发育特征及其形成的行业动因，进而探讨了城市网络外部性对城市竞争力的影响。研究结果表明，珠三角城市群已初步形成以“深圳-广州”为核心的“核心-边缘”网络层级结构。保险业较之于银行业和证券业对于城市网络具有更大的贡献弹性。城市链接率与城市竞争力的弹性分析表明，城市网络外部性对城市竞争力提升具有明显的正向促进作用。
신성시주의적성시망락작위성시관계연구적신범식월래월수도관주。기우주삼각주요금융행업148가기업선지수거，차감성시련쇄망락모형，실증분석성시망락발육특정급기형성적행업동인，진이탐토료성시망락외부성대성시경쟁력적영향。연구결과표명，주삼각성시군이초보형성이“심수-엄주”위핵심적“핵심-변연”망락층급결구。보험업교지우은행업화증권업대우성시망락구유경대적공헌탄성。성시련접솔여성시경쟁력적탄성분석표명，성시망락외부성대성시경쟁력제승구유명현적정향촉진작용。
Researches on city network receive more and more attention as a new research paradigm on re-lationship between cities. Based on the location information of 148 main financial enterprises,this paper analy-zes the city network structure of the Pearl River Delta( PRD),and then discusses the relationship between the city network externalities and city competitiveness. Results show that the PRD urban agglomeration has initially formed a core-periphery network hierarchy structure with Shenzhen-Guangzhou as the center. According to the degree of connection rate and contact strength of city nodes,the core subnet consists of 5 city nodes,and can be divided into three level of network connections,while the periphery subnet consists of 4 city nodes,and can be divided into two level of network connection. From the analysis on financial industries,their contribu-tion degree on the formation of urban network reduces as the following order:insurance,banking and securi-ties. The elasticity analysis shows that the formation of urban network has significant effects on the city devel-opment,reflecting in the city network externality has a relatively remarkable positive effect in promoting city competitiveness.