文献类型：期刊文献

中文题名：网络基础设施建设能否助力企业转型升级--来自“宽带中国”战略的准自然实验

英文题名：Can network infrastructure construction realize the transformation and upgrading of enterprises:a quasi-natural experiment from the“Broadband China”

作者：金环[1];魏佳丽[1];于立宏[1]

机构：[1]华东理工大学商学院,上海200237

年份：2021

期号：6

起止页码：73

中文期刊名：产业经济研究

外文期刊名：Industrial Economics Research

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;北大核心:【北大核心2020】；CSSCI:【CSSCI2021_2022】；

基金：国家社会科学基金重大项目(20ZDA047);国家自然科学基金面上项目(71773029)。

语种：中文

中文关键词：网络基础设施建设;转型升级;宽带中国;企业生命周期;双重差分;

外文关键词：network infrastructure construction;transformation and upgrading;Broadband China;enterprise life cycle;difference-in-differences;

摘要：将"宽带中国"战略的实施视为一项外生政策冲击,基于2008—2018年沪深A股上市公司和地级市面板匹配数据,采用渐进性双重差分法,深入考察了网络基础设施建设对企业转型升级的影响及其内在机制。研究发现,"宽带中国"战略试点政策能够显著促进企业以研发创新和全要素生产率为表征的转型升级,在排除其他政策干扰、消除样本选择偏差以及选择城市坡度作为外生工具变量检验后,结论依然稳健成立。机制检验表明,提升高端人力资本和降低内部交易成本是网络基础设施建设助力企业转型升级的两条重要路径。异质性分析发现,"宽带中国"战略试点政策在民营企业、传统产业以及中西部地区更能发挥比较优势。进一步地,基于上市公司行业分类标准嵌入生命周期理论的结果还显示,"宽带中国"战略的实施对制造业行业中成长期企业转型升级影响最大,对成熟期和衰退期企业影响并不明显。结论不仅拓宽了微观企业转型升级理论的研究视角,也为中国宏观经济的结构转型提供了可靠经验证据和政策启示。
This paper considers the implementation of the"Broadband China"strategy as an exogenous policy shock,and examines the impact of network infrastructure construction on enterprises’transformation and upgrading and the underlying mechanisms by using the progressive difference-in-differences method,based on the panel-matched data of Shanghai and Shenzhen A-share listed companies and prefecture-level cities from 2008—2018.The study finds that the pilot policy of"Broadband China"can significantly promote the transformation and upgrading of enterprises characterized by R&D innovation and total factor productivity.After excluding other policy interference,eliminating sample selection bias and selecting urban slope as an exogenous instrumental variable,the conclusion remains robust.The mechanism test shows that upgrading high-end human capital and reducing internal transaction costs are two important paths for network infrastructure construction to help enterprises transform and upgrade.Heterogeneity analysis finds that the pilot policy of"Broadband China"strategy has more comparative advantages in private enterprises,traditional industries and central and western regions.Furthermore,the results based on the industry classification criteria of listed companies which is embedded by life cycle theory also show that the implementation of the"Broadband China"strategy has the greatest impact on the transformation and upgrading of growing enterprises in the manufacturing industry,while the impact on mature and declining enterprises is not obvious.The conclusions of this paper not only broaden the microscopic research perspective of enterprise transformation and upgrading theory,but also provide reliable empirical evidence and policy implications for the structural transformation of China’s macroeconomy.