摘要
本文从数字基础设施建设、数字产业发展和数字科技创新3个维度构建数字经济发展评价指标体系,采用2014-2019年省级面板数据,借助工具变量法从结构和效率的双重视角实证检验数字经济发展对产业优化升级的影响。研究发现,数字经济发展对产业优化升级具有显著正效应,且对产业效率提升的正向作用强于产业结构优化。异质性分析表明,现阶段东中部地区数字经济发展对产业结构优化与产业效率提升的正向驱动效应明显大于西部地区。进一步分析发现,数字基础设施建设水平、数字产业发展水平与数字科技创新水平两两之间交互项对产业结构优化和产业效率提升的回归系数均为负值,未表现出对产业优化升级的内在积极协同效应。
This paper constructs a digital economy development evaluation index system from the three dimensions of digital infrastructure construction,digital industry development,and digital technology innovation,using the instrumental variable method to empirically test the impacts of digital economy from the dual perspectives of structure and efficiency with provincial panel data from 2014 to 2019.The study finds that the development of digital economy has a significant positive effect on industrial optimization and upgrading,and the positive effect on industrial efficiency improvement is stronger than that of industrial structure optimization.The positive driving effect of efficiency improvement is obviously greater than that of the western region.Further analysis finds that the interaction terms between the level of digital infrastructure construction,the level of digital industry development,and the level of digital technology innovation have both negative regression coefficients for industrial structure optimization and industrial efficiency improvement,which does not show inherent positive synergy effect on industrial optimization and upgrading.
作者
王家庭
袁春来
马宁
Wang Jiating;Yuan Chunlai;Ma Ning(Research Center of China Urban and Regional Economies,Nankai University,Tianjin 300071,China;School of Government,Peking University,Beijing 100871,China;School of Economics,Jinan University,Guangzhou 510632,China)
出处
《中国科技论坛》
CSSCI
北大核心
2022年第12期117-127,共11页
Forum on Science and Technology in China
基金
国家社会科学基金一般项目“我国区域塌陷的多维测度、形成机制与治理模式研究”(21BJL057)
南开大学文科发展基金项目“实施扩大内需战略同深化供给侧结构性改革有机结合研究”(ZB21BZ0207)。
关键词
数字经济
产业结构
产业效率
工具变量法
Digital economy
Industrial structure
Industrial efficiency
Instrumental variable method
