城市服务业动态外部性及其空间效应

Dynamic Externality of Urban Service Sector and Spatial Effectiveness

采用中国地级以上城市数据,通过空间计量分析方法,本文在空间结构设定中充分考虑距离、城市规模等级及城市间规模对比关系而产生的空间相互作用,验证了动态外部性及其城市空间关系对中国城市服务业产生的聚集效应。研究发现,服务业的聚集效应主要由多样化来实现;在落后城市追赶发达城市过程中,现代服务业所起的作用比传统服务业更大;现代服务业对邻近城市有较大影响,且随着规模扩大和中心城市地位的增强,以乘数效应的方式进行传递。该结论意味着,发展现代服务业是实现区域城市化和同城化的重要选择。

Urban service has been the most agglomeration industry. Data during 1997--2007 of 209 cities in China and spatial econometric analysis will be employed to do the empirical analysis. The aim of this paper is to test the effectiveness of dynamic externality for agglomerations. While both specialization and diversity will be adopted together to do the dynamic externality analysis. With classification of service industry, spatial factors of distance, urban size and size comparison among cities have been adopted to do the analysis. The results present that agglomeration of service industry was mainly from diversity. The results also allow some conclusions that modern service was more important for lagged city. Agglomeration impacted surrounding cities with multiple-effectiveness as city size increases. The findings also provide an evidence for regional urbanization and twin cities with modern service sector.