中国小城市的最优规模

Optimal size of China's small cities

对中国县级城市相关数据进行的分析发现:中国县级城市存在着明显的集聚经济,且劳动生产率与城市规模之间的关系符合经典的倒U型曲线理论;中国县级城市的平均最优人口规模为40万人左右;分地区看,东部和东北部城市集聚经济的变化规律明显,且符合倒U型曲线理论,中西部则不然;东部、中部和西部的城市人口均未达到最优规模。

Analysis based on China＇ s county- level data indicate that： there is significant agglomeration economy in county - level cities and the relationship between labor productivity and city size exhibits the inverse U shape. The optimal population size is about 400 thousand, while the current size is too small in 2014. From the sub - region perspective, cities in the east and northeast regions suit the inverse U theory but haven＇ t reach the optimal size, while the cities in middle and west regions not.