城市群空间结构特征与经济绩效——来自中国的经验证据

合理有序的空间组织结构是提高经济增长质量和效益的重要源泉,也是当前区域规划的重要内容。本文基于2000-2009年中国十大城市群面板数据,综合运用位序规模法则、首位度系统考察了城市群空间结构对经济绩效的影响。结果表明:在控制了城市群规模、产业结构、基础设施以及外商直接投资等影响因素后,单中心结构对全要素生产率具有显著的促进作用,且这种作用在城市群规模较小时尤为明显。这意味着我国城市等级分布差异仍然较小,呈现核心城市偏小,中小城市偏大的扁平化特征。因而,进一步强化中心城市的集聚效应,能够降低交通成本和资源消耗,形成更加有效的劳动力市场和更加紧密的产业、技术关联,是促进城市群协调可持续发展的有效途径。

Spatial Structure and Economic Performance in Chinese Urban Agglomerations

Effcient sptial structure is the source of the quality of economic growth.Based on urban agglomeration panel datas from 2000 to 2009,we investigate how different spatial structures,especially the monocentricity and polycentricity dimension,and affect the economic performance of Chinese urban agglomerations.The results indicate that Monocentricity is associated with higher total factor productivity and this correlation is particularly strong in smaller urban agglomerations.In this sense,Chinese urban system in general shows a flat-forming tendency,leading to significant efficiency losses.Therefore,further increasing the size of the core city is important for urban agglomeration’s sustainable development.