摘要
本文以数字服务贸易对全球价值链地位的影响为核心研究对象,基于2008—2021年53个国家的跨国面板数据,实证分析数字服务贸易通过技术创新与数字基础设施驱动全球价值链升级的作用机制,并探究制度质量的调节效应及国家异质性特征。研究发现:数字服务贸易对全球价值链地位升级具有显著正向促进作用,且稳健性检验得以验证;技术创新与数字基础设施在二者关系中发挥关键中介作用,数字服务贸易可通过提升研发投入和完善数字基建降低跨境交易成本,推动价值链向高附加值环节攀升;制度质量也具有正向调节效应。进一步分析表明,数字基础设施存在门槛效应;异质性结果显示,发达国家数字服务贸易的价值链升级效应强于发展中国家。
This study examines the influence of digital service trade on global value chain(GVC)positioning.Based on a crosscountry panel dataset encompassing 53 countries from 2008 to 2021,the research empirically analyzes the mechanisms through which digital service trade drives GVC upgrading via technological innovation and digital infrastructure,while also investigating the moderating role of institutional quality and cross-country heterogeneity.The findings reveal that digital service trade exerts a significantly positive effect on GVC status upgrading,a result confirmed by robustness tests.Technological innovation and digital infrastructure serve as crucial mediating channels;specifically,digital service trade promotes GVC upgrading by increasing R&D investment and improving digital infrastructure,thereby reducing cross-border transaction costs and facilitating movement toward higher value-added segments.Institutional quality further exhibits a positive moderating effect.Additional analysis indicates the presence of a threshold effect for digital infrastructure.Heterogeneity analysis shows that the GVC upgrading effect of digital service trade is stronger in developed countries than in developing countries.
作者
葛飞秀
朱少琪
Ge Feixiu;Zhu Shaoqi(School of International Economics and Trade,Xinjiang University of Finance and Economics)
出处
《经济界》
2026年第1期78-93,共16页
Economic Affairs
基金
国家社会科学基金西部项目“‘一带一路’背景下中国与欧亚经济联盟数字贸易合作模式与建设路径研究”(21XGJ004)
新疆自治区党委外办委托自治区社科重点项目“新疆对外开放机制和平台建设研究”(2025&SJ006)的资助。
关键词
数字服务贸易
全球价值链
技术创新
数字基础设施
Digital Service Trade
Global Value Chain
Technological Innovation
Digital Infrastructure
