数字服务要素对中国制造业全球价值链地位的溢出效应

The Spillover Effect of Digital Service Elements on the Global Value Chain Position of China's Manufacturing Industries

本文拓展LRS产品内分工模型,从技术溢出和产业链溢出双重角度,检验数字服务要素对制造业全球价值链地位的影响。研究发现,增加一国(地区)内部数字服务要素流动,有利于提升其制造业全球价值链地位;出口贸易活动隐含的数字服务要素流出对全球价值链地位具有正向影响,而进口贸易活动隐含的数字服务要素流入则因贸易成本起主导作用,对全球价值链攀升产生负向影响。研究还发现,前向溢出效应显著为负、后向溢出效应显著为正,表明制造业发展更易受到外部需求力量协同带动,形成价值链升级的驱动力。此外,降低数字服务贸易壁垒,提升经济体发达程度,会增强数字服务要素流动的全球价值链攀升效应。本文研究为中国数字贸易高水平对外开放提供了有益参考。

This study extends the LRS product internal specialization model,and aims to investigate the impact of digital service elements flow on the global value chain position of manufacturing industries.It is found that increasing the flow of domestic digital service elements is conducive to enhancing its position in the global value chain.The outflow of digital service elements implied by export trade activities has a positive incentive effect on the global value chain position,in contrast,the inflow of digital service elements implied by import trade activities plays a more dominant role due to trade costs,which has an inhibitory effect on the upgrading in global value chains.The study also reveals that the forward spillover from the upstream industry is significantly negative,and the backward spillover from the downstream industry is significantly positive.It indicates that the development of the manufacturing industry is more likely to be driven by the synergy of external demand forces,forming a driving force of value chain upgrading.In addition,reducing the barriers to trade in digital services and promoting economic development will enhance the global value chain upgrading effect of digital service elements.This study can provide references for accelerating China's liberalization of the digital service trade.