世界经济研究

在国际形势复杂多变的背景下探究区域服务贸易协定(RSTAs)深度如何影响企业全球价值链(GVCs)韧性，对实现高水平对外开放、构建新发展格局、维护国家经济安全与稳定至关重要。文章使用2000～2015年的DESTA数据库、UIBE GVC数据库和中国海关数据库分别构建RSTAs深度指标和企业GVCs韧性指标，从安全性与稳定性双重视角探究RSTAs深度对企业GVCs韧性的影响效果及其内在作用机制，并使用2005～2020年45个行业数据进一步验证微观结果的稳健性。回归结果表明，RSTAs深度能够显著提升企业GVCs韧性，且这一结论经过一系列稳健性和内生性检验后依然成立；异质性分析结果表明，RSTAs深度对企业GVCs韧性的影响因企业生命周期、技术复杂度、国家发展水平以及企业GVCs位置不同而存在差异；机制分析结果表明，RSTAs深度通过降低贸易成本、提升贸易网络地位和改善制度环境三种机制提升企业GVCs韧性；进一步分析结果表明，区域竞争下签订RSTAs虽能显著提升企业GVCs韧性，但因缔约时间前后不同而产生的“保护效应”和“稀释效应”调节了RSTAs深度影响企业GVCs韧性的效果。文章为推动中国签订高水平RSTAs和提高企业GVCs韧性提供了科学决策依据。

It is very important to explore how the depth of regional service trade agreements(RSTAs) affects the resilience of global value chains(GVCs)of enterprises in the context of complex and changeable international situation, so as to achieve a high level of opening up, build a new development pattern and maintain national economic security and stability. This paper uses DESTA database, UIBE GVC database and China Customs database to construct RSTAs depth index and enterprise GVCs resilience index respectively, and explores the effect of RSTAs depth on enterprise GVCs resilience and its internal mechanism from the perspective of safety and stability. This paper uses DESTA database, UIBE GVC database and China Customs database from 2000 to 2015 to construct RSTAs depth index and enterprise GVCs resilience index, to explore the effect of RSTAs depth on enterprise GVCs resilience and its internal mechanism from the perspective of safety and stability, and uses 45 industry data from 2005 to 2020 to further verify the robustness of micro results. The regression results show that the depth of RSTAs can significantly improve the resilience of corporate GVCs, and it is still valid after a series of robustness and endogeneity tests such as tail reduction, elimination of financial crisis interference, survival analysis, industry-level test, instrumental variable method and replacement of regression model. The results of heterogeneity analysis show that the influence of RSTAs depth on the resilience of enterprise GVCs is different due to the different enterprise life cycle, technical complexity, national development level and enterprise GVCs location. The results of the mechanism analysis show that RSTAs depth enhances the resilience of GVCs by reducing trade costs, enhancing the status of trade networks and improving the institutional environment. Further analysis results show that although the signing of RSTAs under regional competition can significantly improve the resilience of enterprises′ GVCs, the "Shielding effect" and "Dilution effect" caused by different contracting time regulate the effect of RSTAs on the resilience of enterprises′ GVCs. This paper provides a scientific decision-making basis for promoting China′s signing of high-level RSTAs and improving the resilience of corporate GVCs.