Measurement of the integrated development level of China's digital economy and manufacturing industry and its dynamic evolution of distribution
In the context of the integrated development of the digital economy and real industry,implementing the integrated devel-opment level of the digital economy and manufacturing industry is an important way to promote digital economy development and facili-tate the digitalization of the manufacturing industry,as well as to improve its quality and efficiency.Based on measuring the development level of the digital economy and manufacturing industry in 30 provinces of China from 2012 to 2021 by using the projection pursuit mod-el,a coupling coordination degree model was established to measure the integrated development level of the regional digital economy and manufacturing industry.The standard deviation ellipse and kernel density estimation methods were used to analyze the spatial distribu-tion and dynamic evolution of the integrated development level of the digital economy and manufacturing industry in China and four re-gions.The results showed that:①The integration level of the national digital economy and manufacturing industry showed a steady up-ward trend.②The center of gravity of the horizontal distribution of the integrated development level of China's digital economy and man-ufacturing industry showed a trend of moving from west to south,and both the ellipse area and the long and short semi-axis showed an expanding trend in the fluctuation,with obvious diffusion effect.③The integrated development level and growth rate of the regional digit-al economy and manufacturing industry both had gradient distribution characteristics,and the catch-up effect of provinces with low in-tegration levels was prominent,showing the trend of convergence of the inter-provincial gap.④The national scale and the four regional integration levels all showed a multi-polar differentiation effect.
digital economymanufacturing industryintegrated developmentstandard deviation ellipsekernel density estimation
万方数据
维普
