摘要
基于2011—2021年中国县域层面的面板数据,将“国家新型城镇化综合试点”政策视为一项准自然实验,采用多期双重差分模型实证检验新型城镇化综合试点政策的实施对空气质量的影响。研究发现:新型城镇化综合试点政策的实施显著提升了空气质量,且在PM_(2.5)浓度越高的地区,新型城镇化综合试点政策对空气质量的改善作用越大。新型城镇化综合试点政策通过提高环境关注度、提升创新能力以及推动效率提升的机制显著改善空气质量,其对空气质量的改善效应会随经济发展水平与互联网发展水平的提高而增强,也会随着人口规模的增加而减弱。在经济增长目标的约束下,新型城镇化综合试点政策的实施对空气质量的提升作用会加强,而环境目标约束的作用并不显著。
Based on panel data from thecounty level in China from 2011 to 2021,the"National New Urbanization Com-prehensive Pilot"is treated as a quasi-natural experiment.A multi-period difference-in-differences model is employed to empirically test the impact of the new-type urbanization pilot policy on air quality.The study finds that:first,the new-type urbanization pilot policy significantly improves air quality;the higher the PM2.s concentration,the greater the improvement effect of the pilot policy on air quality.Second,the new-type urbanization pilot policy significantly improves air quality through mechanisms such as increasing environmental aware-ness,enhancing innovation capabilities,and promoting efficien-cy gains.Third,the improvement effect of the new-type urbanization pilot policy on air quality strengthens with the level of economic development and internet development,and weakens with the increase in population size.Fourth,under the constraints of economic growth targets,the new-type urbanization pilot policy's effect on improving air quality is strengthened,while the effect of environmental targets is not significant.
作者
袁春来
江泽茹
张波
YUAN Chun-lai;JIANG Ze-ru;ZHANG Bo
出处
《城市问题》
CSSCI
北大核心
2024年第4期52-64,共13页
Urban Problems
基金
国家社科基金重点项目(22AZD043)——“新时代实施区域协调发展战略研究”
国家自然科学基金重大项目(42293270)——“乡村地域系统协同观测与转型机理及模拟”。
关键词
新型城镇化综合试点政策
绿色效应
经济增长目标约束
环境目标约束
空气质量
comprehensive pilot policy for newurbani-zation
green effect
economic growth target constraints
environ-mental target constraints
air quality
