城市“摊大饼”式空间扩张的经济学动力机制

从城市土地资源和资本资源两个方面论证了城市空间连续扩张(“摊大饼”)最大限度地发挥了这些资源,又在保证城市劳动力市场整合的同时将城市交易成本(如交通成本)最小化。城市政策和规划的任务之一是如何在无穷多个城市空间扩展模式中寻找到一个最优的方案。

ECONOMIC MECHANISM FOR URBAN SPATIAL EXPANSION

Enormoussuccess in Chinese economy results in rapid urban development. Urban growth, which ismanifested in both population aswellasbuilt- up areas,contributes increasing urban problems such astraffic congestion,environmentpollution and hous- ing crowdedness. Thereis increasing voice thatadvo- catesdiffusion ofurbanpopulation and economicfunc- tions from central city into outskirts in order to miti- gatethese urban problems. Thispaper,based on urban theory,argues thaturban spatialexpansion isinevitable if market forces are allowed to allocate resources in orderto achieveeconomic efficiency. It is also recog- nized that urban spatially continuous expansion can be arranged in ways in which these negative aspects can beminimized and positiveaspectscan bepreserved.