数字经济发展水平的时空演化与收敛特征OA北大核心CHSSCDCSSCICSTPCD

Developing digital economy and building a Digital China are of great significance.This paper uses the improved entropy weight method to measure the development level of digital economy in the three major urban agglomerations of Bei-jing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta,and then analyzes its spatiotemporal evolution characteristics by using Dagum Gini coefficient,absolute β convergence model and spatial conditional β convergence model.The results go as be-low:(1)The development level of the digital economy in the three major urban agglomerations has generally improved,with the spatial pattern of the digital economy in the Beijing-Tianjin-Hebei region showing a single core,and the spatial pattern of the dig-ital economy in the Yangtze River Delta and the Pearl River Delta showing a multi-core.(2)The digital economy development gap of the three major urban agglomerations has fluctuated down.(3)The development level of the digital economy in the Yangtze Riv-er Delta has a significant absolute β convergence,while that of the Beijing-Tianjin-Hebei region has no significant absolute β convergence,and that of the Pearl River Delta region has a significant absolute β divergence.(4)Innovation capability signifi-cantly inhibits the convergence speed of the development level of digital economy in the three major urban agglomerations.