Regression results of the replacing variable.

Digital technology innovation (DTI) is the core driving force for the development of the digital economy. This paper brings digital technology innovation and the supply chain of auto parts manufacturing under the same framework. This paper uses Stata 18 to empirically analyze the panel data of 130 A-share auto parts listed companies in Shanghai and Shenzhen from 2010 to 2022. The digital technology innovation indicator is divided into three levels: substantial digital technology innovation (SDTI), non-substantial digital technology innovation (NDTI), overall digital technology innovation (ODTI). To explore its impact mechanism on enterprise performance. The empirical results show that: (1) Digital technological innovation (DTI) has a positive and significant impact on enterprise performance, and supply chain resilience plays a mediating role in the relationship between digital technology innovation and enterprise performance, and R&D investment (RDI) positively moderates the role of supply chain resilience in promoting enterprise performance. (2) Heterogeneity analysis showed that the impact of supply chain resilience on enterprise performance was more significant in small and medium-sized enterprises. There are significant differences between different groups of business ownership. In economically underdeveloped regions, the effect of digital technology innovation on enterprise performance is more significant. This paper complements the perspective of supply chain to study the relationship between digital technology innovation and enterprise performance, expands the existing research, and its heterogeneity analysis provides new insights for understanding China’s auto parts manufacturing industry. This provides a basis for strengthening digital technology innovation and promoting the sustainable development of the auto parts industry.

数字技术创新（Digital Technology Innovation, DTI）是数字经济发展的核心驱动力。本文将数字技术创新与汽车零部件制造业供应链纳入同一研究框架，采用Stata 18软件对2010-2022年沪深两市130家A股汽车零部件上市公司的面板数据进行实证分析。研究将数字技术创新指标划分为三个维度：实质性数字技术创新（Substantial Digital Technology Innovation, SDTI）、非实质性数字技术创新（Non-substantial Digital Technology Innovation, NDTI）以及总体数字技术创新（Overall Digital Technology Innovation, ODTI），以探究其对企业绩效的影响机制。实证结果表明：其一，数字技术创新（DTI）对企业绩效具有显著正向影响；供应链韧性在数字技术创新与企业绩效的关系中发挥中介作用，且研发投入（R&D Investment, RDI）正向调节供应链韧性促进企业绩效的作用。其二，异质性分析显示，供应链韧性对企业绩效的影响在中小企业中更为显著；不同企业所有权性质的组别间存在显著差异；在经济欠发达地区，数字技术创新对企业绩效的提升效应更为突出。本文补充了从供应链视角探究数字技术创新与企业绩效关系的研究维度，拓展了现有研究范畴，其异质性分析为理解中国汽车零部件制造业提供了全新视角，可为强化数字技术创新、推动汽车零部件产业可持续发展提供理论支撑与实践依据。