数字经济与制造业的耦合程度与增值能力测度OA北大核心CHSSCDCSSCICSTPCD

Based on the panel data of 30 provinces in China from 2013 to 2020,this paper uses the system evolution vector coupling model to measure the coupling degree and value-added capacity of China's digital economy and the manufacturing de-velopment.The study finds that the coupling degree between China's digital economy and manufacturing and system value-added capabilities continue to improve,but there are significant differences between different provinces,and there is a threshold effect in system coupling.The results of system evolution pattern analysis and model decomposition show that the value-added capabilities of digital economy and manufacturing systems in each province are polarized and interrupted in the middle,and that digital econo-my has made a significant contribution to system value-added capabilities,but the coupling dynamics between the manufacturing and the two systems have not played a sufficient role in promoting the system value-added capabilities.Therefore,only by compre-hensively promoting the development of digital economy,manufacturing and system coupling can the value-added capability of the system be improved.