数字经济、技术创新与城市绿色经济效率——基于空间计量模型和中介效应的实证分析

被引:67
|
作者
朱洁西
李俊江
机构
[1] 吉林大学经济学院
关键词
数字经济; 技术创新; 绿色经济效率; 超效率SBM模型;
D O I
暂无
中图分类号
F49 [信息产业经济]; F124.5 [资源开发与利用]; F124.3 [技术发展与革新];
学科分类号
1201 ; 020106 ;
摘要
随着新科技革命的加速推进,数字经济日益成为中国经济高质量发展的新引擎。本文重点关注数字经济的绿色价值,探讨了数字经济、技术创新与城市绿色经济效率之间的内在机理。基于2011—2019年中国282个地级及以上城市的面板数据,采用超效率SBM模型和熵值法,分别构建城市层面数字经济发展水平和绿色经济效率评价指标体系进行测度。运用空间滞后模型和中介效应模型,考察数字经济对城市绿色经济效率的影响并识别传导机制。结果表明:数字经济不仅可以显著提升城市绿色经济效率,而且对邻近城市的绿色经济效率产生了积极的空间溢出效应;数字经济对绿色经济效率的影响存在异质性特征,东部地区城市、大城市和中心城市数字经济发展对绿色经济效率的提升作用更强;数字经济背景下的技术创新是驱动绿色经济效率优化的关键途径。政府应加快数字基础设施升级,实施因地制宜的差异化政策,增强数字技术自主创新能力,充分释放数字经济为城市绿色经济效率带来的红利。
引用
收藏
页码:65 / 80
页数:16
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