Digital mergers and acquisitions (M&As) are increasingly becoming a critical strategic approach for enterprises to advance digital transformation. This study conceptualizes digital M&As as positive shock events for corporate digital transformation. Using a dataset of digital M&As by Chinese listed companies from 2005 to 2024, this study applies the propensity score matching combined with difference-in-differences (PSM-DID) method to empirically examine the impact of digital M&As on the market value of acquiring firms. The results show that digital M&As significantly enhance acquirers’ market value. Mechanism tests reveal that this effect is driven by digital resource empowerment, operating through increased digital factor inputs and strengthened digital innovation capabilities. Heterogeneity analysis further indicates that the market value enhancement effect of digital M&As is predominantly significant in non-digital firms, non-state-owned enterprises, and firms located in eastern China. This study expands the research scope of the micro-level effects of the digital economy and offers useful references for the Chinese government in refining its digital economy strategies, as well as practical guidance for firms in formulating their own digital investment decisions.

This study investigates the effect of government digital attention on firm digital innovation. Using data from Chinese listed firms over 2012–2020, we find government digital attention can significantly propel the improvement of firms' digital innovation levels, primarily driving an increase in the quantity of digital innovations rather than a qualitative enhancement. Further analysis indicates that government attention achieves this impact by elevating the regional digital infrastructure, increasing firms' digital subsidies, alleviating firms' financing constraints, encouraging firms to intensify R&D investment, fostering a positive attitude towards digital transformation, and consequently, boosting the overall level of firms' digital innovation.