Enterprise artificial intelligence application and industrial-innovation chain integration: Evidence from 297 Chinese cities

This study investigates the impact of enterprise Artificial Intelligence (AI) applications on the integration of regional industrial and innovation chains. Utilizing data from 297 Chinese prefecture-level cities (2013–2022) and employing coupling analysis and mediation models, the research demonstrates that enterprise AI significantly facilitates "dual-chain" integration. This process is primarily driven by digital infrastructure upgrading and enhanced technological innovation levels. Heterogeneity analysis reveals that this positive impact is more pronounced in regions with high fiscal self-sufficiency and among large to medium-sized enterprises, with significant effects observed in eastern and central China. Conversely, the impact remains limited in the western region and among small-scale firms due to resource and institutional constraints. The findings suggest that fostering a synergistic digital ecosystem and implementing inclusive technology empowerment are crucial for achieving high-quality regional development.