The impact of digital technology innovation networks on regional economic resilience in the Yangtze River Delta

With the rapid development of the digital economy, it is of great significance to explore the impact of digital technology innovation networks on regional economic resilience. Taking 41 cities in the Yangtze River Delta as the example, this study used the data of digital technology innovation cooperation patents and economic and social development from 2010 to 2021, and the social network analysis method and economic resilience measurement index, to describe the temporal and spatial change characteristics of digital technology innovation networks and economic resilience in cities in the Yangtze River Delta, and empirically test the influence of the structural characteristics of digital technology innovation networks on urban economic resilience. The results show that: 1) The cooperation degree of digital technology innovation in the Yangtze River Delta was constantly increasing, and it has gradually evolved into a core-periphery structure and a cohesive subgroup structure. The economic resilience of the cities in the Yangtze River Delta has been steadily increasing through the study period, but the spatial differences were gradually increasing. 2) Degree centrality and closeness centrality of digital technology innovation networks in Yangtze River Delta cities had a significant positive effect on the promotion of urban economic resilience, while betweenness centrality had a negative impact on economic resilience. Robustness test also showed that this conclusion is valid. 3) Compared with the central cities, the digital technology innovation network in peripheral cities had a greater impact on their economic resilience, and the degree of intermediary centrality was more significant, which was quite different from that in core cities. This study is useful for clarifying the relationship between digital technology innovation networks and economic resilience, and exploring the path to enhance regional economic resilience.