摘要
集聚经济产生的外部性是城市经济增长的重要原因,但主要是MAR外部性还是Jacobs外部性起主导作用,学术界存在争议。利用中国285个地级以上城市2004-2013年的面板数据,从城市规模的角度入手,分析不同规模城市外部性与城市产业发展中专业化和多样化对经济增长的影响。实证结果表明:从全国范围内来看,产业多样化和专业化均能对经济增长产生一定的促进作用,多样化和专业化不是完全对立的;对不同规模的城市来说,资本和劳动对经济增长有显著的正向影响,在小型城市中,劳动力的影响更显著,而城市规模越大,资本作用表现越明显;中小城市倾向于支持MAR外部性,大型城市倾向于支持Jacobs外部性。
The economic externalization is the important reason of the urban economic growth. However,whether the external MAR or the external Jacobs plays a leading role is a dispute. Previous studies tend to ignore the differences of city scale: In this paper,we analyze the relationship between diversification,specialization and economic growth from the perspective of urban scale,using the panel data of 285 cities in China from2004 to 2013. The empirical results show that: From a nationwide perspective,diversfication and specialization can promote the economic growth,diversification and specialization is not completely negatively correlated. For different scale cities,capital and labor to economic growth have a significant positive impact,and in small cities,labor has more significant effect,while in larger city,capital effect is more obvious. Finally,small and medium cities tend to support MAR externalization,while large cities tend to support Jacobs externalization.
出处
《产经评论》
CSSCI
北大核心
2016年第3期141-152,共12页
Industrial Economic Review
关键词
城市规模
外部性
产业多样化
专业化
经济增长
city scale
externalization
diversification
specialization
economic growth
