智慧城市政策对城市绿色发展影响的实证研究  

An empirical study on the impact of smart city policies on the urban green development

作　　者：杨佳郑 徐思佳 王俊霞[1] Yang Jiazheng;Xu Sijia;Wang Junxia(School of Economics and Finance,Xi'an Jiaotong University,Xi'an 710061)

机构地区：[1]西安交通大学经济与金融学院,西安710061

出　　处：《北方经贸》2023年第7期104-113,共10页Northern Economy and Trade

基　　金：国家社会科学基金西部项目(19XJY019)。

摘　　要：智慧城市政策是中国转变城市发展方式的重要举措。为了深入研究智慧城市政策的效应,将智慧城市试点看作准自然实验。基于2007-2017年179个城市的平衡面板数据,利用熵值法测算城市的绿色发展水平,使用双重差分法估计智慧城市政策对城市绿色发展水平的影响,在此基础上使用PSM-DID(倾向得分匹配与双重差分法)进行验证和检验。结果表明:第一,智慧城市政策对城市绿色发展水平具有显著的提升作用;第二,智慧城市政策对绿色经济、绿色排放、绿色环境三个维度具有显著的促进作用,而对绿色生活方面影响不大;第三,城市异质性方面,智慧城市政策对于大中型城市的效果要比小型城市显著,高政府规模、低绿化水平的城市在实施政策前后,绿色发展水平的提升更加显著。一系列稳健性检验的结果也表明结论是可靠的。在此基础上,提出了具有针对性的促进城市绿色发展的对策建议。Smart city policy is an important initiative to transform urban development in China.In this paper,smart city pilots are viewed as quasi-natural experiments,and based on balanced panel data of 179 cities from 2007-2017,the entropy value method is used to measure the green development level of cities,and the impact of smart city policies on the green development level of cities is estimated using the double difference method,based on which the PSM-DID(propensity score matching with double difference method)is used to verify and test.The results show that:first,smart city policy has a significant enhancement effect on the green development level of cities;second,smart city policy has a significant promotion effect on the three dimensions of green economy,green emissions,and green environment,while it has little effect on green living;third,in terms of city heterogeneity,the effect of smart city policy is more significant for large and medium-sized cities than for small cities,and cities with high government size and low greening The cities with high government size and low greening level have more significant improvement in green development level before and after the implementation of the policy.The results of a series of robustness tests also show that our conclusions are reliable.On this basis,this paper proposes targeted countermeasures to promote urban green development.

关 键 词：智慧城市 绿色发展 熵值法 双重差分法 倾向得分匹配 

分 类 号：F120[经济管理—世界经济]