南华大学学报（社会科学版）2026，Vol.27Issue(1)：10-20,11.DOI:10.13967/j.cnki.nhxb.2026.002
新基建背景下特高压工程对高技术企业创新效率的影响研究
Research on the Impact of Ultra-high Voltage Projects on Innovation Efficiency of High Technology Enterprises in the Context of New Infrastructure Construction
摘要
Abstract
The"new infrastructure"is an infrastructure strategy under the new stage of China's economic development,and it is also an important guarantee for enterprises to implement innovation.Accordingly,this paper uses a multi-period difference-in-differ-ences model to investigate the impact of UHV projects on the innovation efficiency of high-tech enterprises.It is found that only UHV projects in power-output regions can improve the innovation efficiency of high-tech enterprises,and then the impact of UHV projects on the innovation efficiency of high-tech enterprises is explored only for the output regions,while conducting mechanism and heterogeneity analysis.The results show that in the output regions,the UHV project affects the innovation efficiency of high-tech enterprises through improving enterprise performance and promoting digital transformation;The positive promotion effect is pronounced for high-tech firms located in Central China,state-owned enterprises,SMEs,and firms from sectors linked to UHV construction&operation,based on which targeted policy suggestions are put forward.This study provides solid empirical evidence to support that"new infrastructure con-struction"promotes technological innovation in China.关键词
特高压工程/高技术企业/创新效率/双重差分模型Key words
extra-high voltage project/high-tech enterprises/innovation efficiency/multi-period difference-in-differences model分类
管理科学引用本文复制引用
李玉琼,吕小芳..新基建背景下特高压工程对高技术企业创新效率的影响研究[J].南华大学学报（社会科学版）,2026,27(1):10-20,11.基金项目
国家自然科学基金项目"以科学为基础的创新生态系统协同演化及政策研究"资助(编号:71974091) （编号:71974091）
湖南省社会科学基金智库重大项目"衡阳打造世界旅游目的地的顶层设计研究"资助(编号:24ZW25) （编号:24ZW25）
湖南省自然科学基金项目"面向产业创新生态系统的政策协同演化路径构建研究"资助(编号:2023JJ50134) （编号:2023JJ50134）
湖南省研究生教改重点课题"数字经济背景下商科研究生创新能力'三创递进'培养模式与提升路径研究"资助(编号:2023JGZD059) （编号:2023JGZD059）
