Abstract: Enhancing the resilience of industrial and supply chains is a key element in achieving high-quality economic development. The construction of a Digital China serves as a crucial engine for advancing Chinese-style modernization in the digital era. As the backbone of the digital economy, the role of digital infrastructure in empowering the resilience of industrial and supply chains warrants in-depth investigation. Based on the data from Chinese A-share listed companies from 2007 to 2021, this paper applies a difference-in-differences (DID) model to examine the impact of digital infrastructure development on enhancing the resilience of industrial and supply chains, as well as the underlying mechanisms. The findings reveal that digital infrastructure can significantly improve the resilience of industrial and supply chains. The mechanism analysis indicates that digital infrastructure promotes the resilience through the expansion effect of supply chain networks, the innovation effect of firms, and the compression effect of spatial distance. The heterogeneity extended analysis shows spatial non-uniformity in the resilience enhancement effect of digital infrastructure, with a more pronounced effect in the eastern region. Furthermore, digital infrastructure development has a stronger resilience-enhancing effect on the small firms, the firms with low R&D intensity, the firms with low degrees of digital transformation, and the firms in labor-intensive industries. The construction of digital infrastructure has significantly reduced the concentration of industrial and supply chains.

Key words: industrial and supply chain resilience, digital infrastructure, supply chain network, industrial and supply chain concentration