基于全局主成分与熵值法对数字经济水平的综合评价

Comprehensive Evaluation of Digital Economy Level Based on Global Principal Component Analysis and Entropy Method

摘要: 为了解我国各地区数字经济水平发展情况，从数字基础设施、产业规模、创新环境、融合程度四方面选取互联网宽带接入端口数、移动电话基站数、电信业务总量、软件产品收入、R&D经费、专利授权数、数字惠普金融指数、电子商务销售额8个指标数据，构建能够准确反应数字经济发展水平的指标体系；采用全局主成分分析与全局熵值法相结合的权重计算法测算我国30个省份8年的数字经济水平，得出各地区的数字经济发展水平综合指数与排名，分析其存在的地区性差异并提出合理性建议。根据结果可以看出数字经济水平的发展在地区上表现不均衡，整体呈现由东部地区向西北地区递减的特征。

Abstract: To understand the development level of digital economy across different regions in China, an indicator system has been constructed to accurately reflect the digital economy’s progress. The system selects eight key indicators from four dimensions: digital infrastructure, industry scale, innovation environment, and integration level. These indicators include the number of broadband internet access ports, the number of mobile phone base stations, total telecommunications business volume, software product revenue, R&D expenditure, number of authorized patents, the digital inclusive finance index, and e-commerce sales. Using a weighting calculation method that combines global principal component analysis with the global entropy method, the digital economy level of 30 provinces in China over eight years is measured, resulting in a comprehensive index and ranking of the digital economy development level in various regions. The regional differences are analyzed, and reasonable suggestions are provided. The results reveal that the development of the digital economy is uneven across regions, generally showing a decreasing trend from the eastern to the northwestern regions.