摘要
利用2000—2017年我国293个城市的面板数据和多期双重差分法,估计国家级新区对经济发展的提升效应。研究发现:首先,新区对GDP增长、劳动生产率增长和TFP增长具有显著的提升效应,但对绿色TFP增长的提升效应有待增强,其通过资本、劳动力、纯技术效率和技术进步促进经济发展,对GDP增长的提升年限约为6年,对劳动生产率增长、TFP增长和绿色TFP增长具有持续提升效应,且辐射效应在新区所属城市周边100公里以内,并随着距离增大而逐渐减小。其次,新区通过创新、收入和政策效应机制发挥提升作用。最后,单城和双城布局均利于经济发展,尤其是后者,且双城布局更利于发展较好的区域的高质量发展,面积适宜在500—1000平方千米或1500—2000平方千米,在培育期城市群中创设新区的提升效应最大。
Based on the panel data of 293 cities from2000 to 2017,the multi-period difference-in-difference model is used to estimate the enhancement effect of state-level new areas on economic development.The research finds that:First,state-level new areas have a significant effect on GDP growth,labor productivity growth,and TFP growth,but the effect on GTFP growth needs to be enhanced;it makes use of capital,labor,pure technical efficiency and technical progressto promote economic development;its enhancement effect on GDP growth is about 6 years,and it has a continuous enhancement effect on labor productivity growth,TFP growthand GTFP growth,and the radiation effect is within 100 kilometers around cities where state-level new areasare locatedwhile the effect gradually decreases with the increase of distance.Second,state-level new areas exert theenhancement effect through innovation effect,income effect and policy effect.Third,both the single-area layout and the dual-area layoutare conducive to economic development,especially the dual-area layout,while the dual-area layout is more conducive to the high-quality development of the better-developed area;the space area of state-level new areasare suitable for 500-1000 km^(2) or 1500-2000 km^(2),and the approval of state-level new areas in urban agglomerations during the cultivation period has the greatestenhancement effect.
出处
《城市问题》
CSSCI
北大核心
2021年第3期75-87,共13页
Urban Problems
基金
国家社会科学基金一般项目(19BGL208)
关键词
国家级新区
经济发展
提升效应
多期双重差分法
state-level new areas
economic development
enhancement effect
Multi-period Difference-in-Difference Model
