中国数字经济统计指标体系与核算方法研究
Research on Statistical Index System of Chinese Digital Economy and It’s Accounting Method

数字技术进入加速创新的爆发期，二十大报告提出要大力推动数字经济和实体经济深度融合。在此背景下，本文基于数字经济具有的本质特点，并与传统经济进行对比，建立了数字经济统计指标体系；又针对数字经济指标核算所面临的三大问题：数字经济的精准核算、免费“数字产品”的核算、隐藏数字经济的发掘与核算，将波拉特的数字经济核算方法进行改进，并用所改进的核算方法分别计算了2018年和2020年我国数字经济规模。研究结果表明，2018年和2020年我国数字经济规模分别为29.96万亿元和36.72万亿元，分别占当年我国GDP的32.58%和36.23%，相较于中国信通研究院公布的该年中国数字经济的核算结果，分别只相差4.47%和6.75%。并且，在调整核算过程中，我国各类数字技术和数字基础设施产业的投入存在较大的不平衡。
Digital technology has entered a period of accelerated innovation. The report of the 20th National Congress of the Communist Party of China proposed to vigorously promote the deep integration of the digital economy and the real economy. In this context, the present paper, by analyzing the essential characteristics of digital economy and comparing it with traditional economy, a comprehensive evaluation index system of Chinese digital economy is established; and based on three major problems encountered in the adjust accounts of digital economy: accurate accounting of digital economy, accounting methods of free digital products, and exploration and accounting of hidden digital economy, Porat’s accounting method were improved, and we uses the improved account method to calculate the scale of China’s digital economy in 2020. The results showed that: 1) China’s digital economy has developed rapidly, and the scale of China’s digital economy has reached 29.96 trillion Yuan and 36.72 trillion Yuan in 2018 and 2020, it was less 4.47% and 6.75% than the results published by China Information and Communication Research Institute, and it accounts for 32.58% and 36.23% of China’s GDP in 2018 and 2020, respectively; 2) There is a lot of imbalance on the input of various digital technology and digital infrastructure industries showed in the adjust accounts course.