DYNAMIC COUPLING COORDINATION OF DIGITAL ECONOMY AND HIGH-QUALITY DEVELOPMENT IN TRANSPORTATION SECTOR

This study employs a coupling coordination degree model to assess the interrelationship between the digital economy (DE) and the high-quality development of the transportation sector (THD). The model is combined with kernel density estimation (KDE) to analyze the dynamic development characteristics of these two sectors. The panel data of 30 provinces in China from 2013 to 2021 indicates that the coupling degree between DE and THD is 0.389, indicating an overall antagonistic stage. The coupling coordination degree is 0.494, indicating an overall near disorder. The time trend reveals that the coupling coordination degree between DE and THD in all regions shows an increasing trend, with the mutual influence gradually deepening. The distribution characteristics of DE and THD coupling degree demonstrate an evolutionary trend from dispersion to agglomeration. With regard to the spatial evolution trend, the coupling degree between DE and THD exhibits a balanced development characteristic, with the coupling degree converging to the antagonistic stage.