... a vital force that influences sustainable economic development. Design/methodology/approach This study employs a double machine learning model and a mediation and moderation effects model to investigate the impact mechanisms of digital infrastructure on urban-rural income inequality, in which new...

... Studies covering 2016 to 2022, comprising over 29,000 observations. A double machine learning framework is employed to control for high-dimensional household and regional characteristics flexibly, enhancing the robustness of causal inference. Findings The findings show that NAAPZ policy...