Research on the Influence Mechanism of Air Transport on Industrial Upgrading in Beijing-Tianjin-Hebei Region

In order to explore the influence mechanism of air transport on industrial upgrading in Beijing-Tianjin-Hebei region, this study combines existing literature and takes capital flow, technological innovation, and population flow as intermediary variables. Based on data from 2010 to 2023, an intermediary benefit model is constructed for empirical analysis. The study found that air transport has a significant positive effect on the industrial upgrading of Beijing-Tianjin-Hebei, and among the mediating variables, capital flow did not play a mediating role, while technological innovation and population flow played a mediating role, accounting for 12.317% and 61.098% of the total effect respectively. The research conclusions provide an empirical basis for optimizing the air transport network and strengthening the policy of technological synergy and talent flow under the Beijing-Tianjin-Hebei collaborative development strategy.