摘要
文章基于2011—2023年我国30个省份的面板数据,实证考察数字经济对碳生产率的直接影响及间接传导效应。研究结果表明:数字经济对碳生产率的提升发挥着显著促进作用,且这一结论通过一系列稳健性检验后仍旧成立。机制检验结果证实,高技术产业集聚在数字经济推动碳生产率提升的过程中发挥着中介效应。异质性检验结果表明,数字经济对碳生产率的正向作用呈现东部地区最显著,中部、东北和西部地区依次递减的特征。门槛效应检验结果显示,数字经济对碳生产率的正向作用呈现非线性边际递增特征。
Based on the panel data of 30 provinces in China from 2011 to 2023,this paper empirically analyzes the direct effect and indirect transmission effect of digital economy on carbon productivity.The research results show that digital economy plays a significant role in promoting the improvement of carbon productivity,and that this conclusion still holds true after a series of robustness tests.The mechanism test results show that high-tech industry agglomeration plays an intermediary effect in the process of promoting the improvement of carbon productivity through digital economy.Heterogeneity test results show that the positive effect of digital economy on carbon productivity is the most significant in the eastern region,and decreases successively in the central,northeast and western regions.The threshold effect test results show that the positive effect of digital economy on carbon productivity exhibits a non-linear marginal increasing characteristic.
作者
张丽君
张永礼
Zhang Lijun;Zhang Yongli(School of Management,Hebei GEO University,Shijiazhuang 050031,China)
出处
《统计与决策》
北大核心
2025年第8期23-28,共6页
Statistics & Decision
基金
国家社会科学基金一般项目(21BTJ049)
河北地质大学国家预研项目(KY2024YB19)
河北省高等教育教学改革研究与实践项目(2023GJJG302)。
关键词
数字经济
高技术产业集聚
碳生产率
固定效应模型
中介效应模型
digital economy
high-tech industry agglomeration
carbon productivity
fixed effect model
intermediary effect model
