摘要
数字经济和绿色技术创新是新时代中国实现绿色高质量发展的双轮驱动力。本文使用2011~2021年我国285个地级市的面板数据,基于动态空间杜宾模型,实证考察数字经济发展对城市绿色发展效率的影响,并识别其中的绿色技术创新驱动机制。研究发现:各城市绿色发展效率在时间维度上存在着较强的警示效应,在空间维度上则表现出明显的溢出效应;数字经济能同时推动本地与空间关联地区绿色发展效率的提升,这一作用在长期与短期均显著,在一系列稳健性检验后该结论仍然成立。异质性分析表明,数字经济对绿色发展效率的直接效应与间接效应会受到城市资源禀赋差异与创新绩效差异的显著影响。机制分析表明,数字经济能够通过引导绿色技术创新方向、扩大绿色技术创新规模、提高绿色技术创新质量来改善本地绿色发展效率,而其空间溢出效应在当前阶段主要通过绿色技术创新的方向引导来实现。
The digital economy and green technology innovation will be the twin engines driving China's high-quality green development in the new era.Using panel data of 285 prefecture-level cities in China from 2011 to 2021 and the dynamic spatial Durbin model,this paper empirically examines the impact of the digital economic development on urban green development efficien⁃cy and identifies the driving mechanism of green technology innovation.The results show that the green development efficiency of citi⁃es shows a strong alarm effect in the time dimension and a significant spillover effect in the spatial dimension.The digital economy can simultaneously promote the improvement of local and spatially related green development efficiency,which is significant in both the long and short term and still holds after a series of robustness tests.Heterogeneity analysis shows that the direct and indirect effects of the digital economy on green development efficiency are significantly affected by differences in urban resource endowments and innovation performance.The mechanism analysis shows that the digital economy can improve local green development efficiency by guiding the direction of green technology innovation,expanding the scale of green technology innovation,and improving the quality of green technology innovation.Its spatial spillover effect is currently mainly achieved by guiding the direction of green tech⁃nology innovation.
作者
于璐瑶
周涛
高洋
Yu Luyao;Zhou Tao;Gao Yang(School of Economics,Xi'an University of Finance and Economics,Xi'an 710100,China)
出处
《工业技术经济》
CSSCI
北大核心
2023年第12期65-73,共9页
Journal of Industrial Technological Economics
基金
国家社会科学基金重点项目“基于低碳绿色发展的‘一带一路’区域产业链研究”(项目编号:19AJY001)
陕西省社会科学基金“深入学习贯彻党的二十大精神研究”重大项目“基于制度创新的陕西自贸试验区对标国际贸易新规则路径研究”(项目编号:2023ZD05)
陕西省科技厅软科学研究计划项目“陕西自贸区贸易便利化制度创新研究”(项目编号:2020KRM138)。
关键词
数字经济
城市绿色发展效率
绿色技术创新
动态空间杜宾模型
大数据
数字生态系统
digital economy
green technology innovation
green development efficiency
urban development
dynamic spatial durbin model
big data
digital ecosystem
