综述Overview

The digital economy has become a core engine of global economic growth, profoundly reshaping the ways of production, circulation and consumption. Rather than directly reproducing rankings from any international digital-economy list, this index gathers underlying public data for 25 major economies worldwide—the scale of the digital economy, e-commerce retail scale, internet users, digital infrastructure, digital-technology patents, digital-tech unicorns and the level of industrial digitalization—and computes its own rankings according to the CPPPS proprietary evaluation algorithm (the four-dimensional model of Scale + Quality + Innovation + Contribution).

数字经济已成为全球经济增长的核心引擎，深刻重塑生产、流通与消费方式。本指数不直接转载任何国际数字经济榜单的名次，而是采集全球 25 个主要经济体的底层公开数据——数字经济规模、电商零售规模、互联网用户、数字基础设施、数字技术专利、数字科技独角兽与产业数字化水平，依据 CPPPS 自有评价算法规范（规模 + 质量 + 创新 + 贡献四维模型）自行计算排名。

Unlike the common international practice of ranking solely by the 'aggregate size of the digital economy', this index additionally incorporates a Contribution dimension—namely, the level of 'digitalization empowering the real economy (industrial digitalization)', measuring how deeply digital technology transforms such real sectors as manufacturing, energy, logistics and agriculture. This dimension is the distinctive feature of this index: economies that empower the real economy, marked by manufacturing digitalization, therefore receive a fairer assessment, avoiding the one-sided amplification of 'platform-traffic' economies under a size-only lens.

与仅按"数字经济总量"排序的国际通例不同，本指数额外纳入贡献维度——即"数字化赋能实体经济（产业数字化）"的水平，衡量数字技术对制造、能源、物流、农业等实体部门的改造深度。这一维度是本指数的特色：以制造业数字化为标志的实体赋能型经济体因此获得更公允的评价，避免了"平台流量型"经济体在规模口径下的单一放大。

Evaluation results: China, the United States, Japan, South Korea and Germany rank in the top five. Overall, economies that combine 'an ultra-large digital scale + leading infrastructure + strong real-economy empowerment' rank ahead, while large-population countries that are strong in scale and innovation but weak in real-economy empowerment, or that lag in infrastructure, rank relatively lower. All data in this ranking are public-knowledge approximations marked 'subject to official figures', permanently free and public, and for research and reference only.

评价结果：中国、美国、日本、韩国、德国位列前五。整体看，兼具"超大数字规模 + 领先基础设施 + 强实体赋能"的经济体居前；规模与创新突出但实体赋能偏弱、或基础设施滞后的人口大国排名相对靠后。本排名全部数据为公开常识近似值，标注"以官方为准"，永久免费公开，仅供研究与参考。

分层梯队Tiers

A++ 前三Top 3 A+ 四至十4th–10th A 十一至二十11th–20th B 其余Rest

全球 25 大经济体数字经济指数排名Digital Economy Index Ranking of the 25 Largest Economies

排名	经济体	数字经济指数	规模	质量	创新	贡献	数字规模(万亿美元)	梯队
1	中国China	92.66	86.4	93.6	93.5	100.0	7.0	A++
2	美国United States	81.81	76.5	78.7	94.3	81.7	21.0	A++
3	日本Japan	57.18	29.4	85.1	51.5	78.3	2.5	A++
4	韩国South Korea	53.91	16.8	100.0	50.5	71.7	1.2	A+
5	德国Germany	53.76	26.2	63.8	44.5	91.7	2.7	A+
6	英国United Kingdom	43.76	24.9	68.1	50.9	45.0	2.1	A+
7	新加坡Singapore	39.15	2.5	93.6	29.0	55.0	0.3	A+
8	法国France	36.97	19.4	63.8	35.1	41.7	1.5	A+
9	瑞士Switzerland	32.97	5.4	78.7	24.6	41.7	0.5	A+
10	荷兰Netherlands	32.74	9.1	78.7	21.1	38.3	0.8	A+
11	加拿大Canada	30.4	13.1	61.7	25.6	33.3	1.1	A
12	瑞典Sweden	29.05	4.2	76.6	19.6	33.3	0.4	A
13	以色列Israel	27.52	1.3	72.3	31.8	25.0	0.2	A
14	澳大利亚Australia	25.63	8.8	59.6	17.8	28.3	0.7	A
15	印度India	25.03	33.5	4.3	41.5	16.7	0.65	A
16	意大利Italy	22.8	13.2	46.8	12.9	25.0	0.9	A
17	爱尔兰Ireland	22.74	3.3	68.1	12.8	21.7	0.4	A
18	西班牙Spain	21.63	10.8	51.1	11.2	21.7	0.7	A
19	阿联酋United Arab Emirates	18.62	1.5	74.5	5.6	8.3	0.2	A
20	俄罗斯Russia	16.74	13.4	29.8	9.6	16.7	0.4	A
21	巴西Brazil	15.44	17.3	21.3	11.1	11.7	0.5	B
22	沙特阿拉伯Saudi Arabia	11.58	4.7	46.8	2.8	0.0	0.25	B
23	越南Vietnam	8.32	6.0	14.9	1.7	11.7	0.12	B
24	墨西哥Mexico	8.23	10.5	8.5	3.9	8.3	0.3	B
25	印度尼西亚Indonesia	8.21	16.8	0.0	5.4	5.0	0.3	B

算法详细论述Methodology

一、评价依据

The digital economy is a multi-dimensional concept, and international institutions and countries differ in their statistical calibers. This index synthesizes the following framework and abstracts four evaluation levels—'Scale—Quality—Innovation—Contribution':

数字经济是多维概念，国际机构与各国统计口径各异。本指数综合以下框架，抽象出"规模—质量—创新—贡献"四个评价层次：

规模：数字经济总量（数字产业化 + 产业数字化的增加值口径）、电商零售规模、互联网用户规模——衡量数字经济的"体量"。
质量：数字基础设施水平（5G 网络覆盖、固定宽带与移动宽带渗透率、国际带宽）——衡量数字经济的"底座"，决定数字化的可达性与体验。
创新：数字技术专利（人工智能、5G、云计算、区块链等）与数字科技独角兽（高成长数字企业）——衡量数字经济的"前沿动能"。
贡献（CPPPS 特色）：产业数字化水平，即数字技术对实体经济（制造、能源、物流、农业）的赋能深度——衡量数字经济的"外溢价值"，避免仅以流量与平台规模论英雄。

二、数学模型

Each indicator is first range-standardized to [0,1]; large-span scale indicators are log-transformed before standardization (to avoid head monopoly, in line with the CPPPS specification), and then aggregated by weighted summation across the four dimensions:

各指标先极差标准化到 [0,1]，规模类大跨度指标取对数后再标准化（避免头部垄断，符合 CPPPS 规范），随后按四维加权求和：

规模 S = 0.40·ln(1+数字经济规模)′ + 0.30·ln(1+电商规模)′ + 0.30·ln(1+互联网用户)′ 质量 Q = 数字基础设施′ 创新 I = 0.50·数字技术专利′ + 0.50·数字科技独角兽′ 贡献 C = 产业数字化′ 数字经济指数 = 100 × (0.35·S + 0.20·Q + 0.20·I + 0.25·C)

Values marked with ′ denote figures after log/range standardization. The scale weight of 0.35 is the largest, reflecting that 'the digital economy is first and foremost an economy of scale'; the Contribution dimension, at 0.25 and second only to scale, highlights the CPPPS orientation of 'digitalization empowering the real economy'; Quality and Innovation, each at 0.20, jointly characterize the sustainable competitiveness of digitalization.

其中带 ′ 者表示经对数/极差标准化后的取值。规模权重 0.35 为最大，体现"数字经济首先是规模经济"；贡献维度 0.25 仅次于规模，突出"数字化赋能实体"的 CPPPS 特色取向；质量与创新各 0.20，共同刻画数字化的可持续竞争力。

三、指标与权重依据

指标	处理	权重	维度	依据
数字经济规模	对数+极差	规模 0.40	规模	数字产业化+产业数字化增加值，体量基础
电商零售规模	对数+极差	规模 0.30	规模	数字经济最成熟的商业化载体
互联网用户	对数+极差	规模 0.30	规模	数字经济的需求侧人口基数
数字基础设施	极差	质量 1.00	质量	5G/宽带覆盖决定数字化可达性
数字技术专利	极差	创新 0.50	创新	数字技术的前沿供给能力
数字科技独角兽	极差	创新 0.50	创新	高成长数字企业，创新商业化能力
产业数字化	极差	贡献 1.00	贡献	数字赋能实体（制造/能源/物流/农业），CPPPS 特色

The logic of the weight design: (1) all three scale indicators are log-transformed, because the scale of the digital economy and the number of internet users span tens to even a hundred times, and linear normalization would let leading economies monopolize the scores while trailing economies approach zero; after log transformation, economies compete fairly at the 'order-of-magnitude' level. (2) The Contribution dimension is set apart with a weight of 0.25, intended to correct 'scale-only thinking'—an economy excelling in platform traffic but weak in real-economy empowerment does not necessarily contribute more total social value from its digital economy than an economy leading in manufacturing digitalization.

权重设计逻辑：①规模三指标均取对数，因为数字经济规模、互联网用户跨度达数十倍乃至百倍，线性归一化会令头部经济体垄断分数、尾部经济体趋零；对数处理后各经济体在"数量级"层面公平竞争。②贡献维度单列且权重 0.25，意在矫正"唯规模论"——一个以平台流量见长而实体赋能薄弱的经济体，其数字经济的社会总价值未必高于一个制造业数字化领先的经济体。

四、数据来源与局限性

The scale of the digital economy refers to the value-added caliber of digital economic growth published by national statistical departments and authoritative research institutions (such public-knowledge approximations as roughly USD 21 trillion for the United States and about RMB 50 trillion for China); e-commerce retail scale and internet users refer to public statistics; and digital infrastructure, digital-technology patents, digital-tech unicorns and the level of industrial digitalization are composite approximate scores based on public knowledge. All the above figures are approximations and are uniformly marked 'subject to official figures'.

数字经济规模参考各国统计部门与权威研究机构发布的数字经济增长值口径（美国约 21 万亿美元、中国约 50 万亿元人民币等公开常识近似值）；电商零售规模、互联网用户参考公开统计；数字基础设施、数字技术专利、数字科技独角兽、产业数字化水平为公开知识的综合近似评分。上述数值均为近似值，一律标注"以官方为准"。

Limitations: (1) countries differ in their statistical calibers for the digital economy (differences in how the boundary between digital industrialization and industrial digitalization is drawn), so cross-economy comparability carries errors; (2) digital infrastructure and industrial digitalization use approximate 0–100 scores with a degree of subjectivity; (3) emerging dimensions such as data-factor trading, digital-trade barriers and digital governance are not included. This ranking is for research and reference only and does not constitute any basis for investment or policy.

局限性：①各国数字经济统计口径不一（数字产业化/产业数字化的边界划分差异），跨经济体可比性存在误差；②数字基础设施、产业数字化等采用 0-100 近似评分，带有一定主观性；③未纳入数据要素交易、数字贸易壁垒、数字治理等新兴维度。本排名仅供研究与参考，不构成任何投资或政策依据。

五、参考文献

中国信息通信研究院：《中国数字经济发展研究报告》（数字经济规模、产业数字化）。
联合国贸易和发展会议（UNCTAD）：《数字经济报告》（全球数字经济与电子商务）。
国际电信联盟（ITU）：《衡量数字化发展》系列（数字基础设施与宽带渗透）。
经济合作与发展组织（OECD）：《数字经济展望》（数字政策与国际比较）。
世界银行：《数字进展与发展报告》。
世界知识产权组织（WIPO）：专利统计与数字技术分类（人工智能、通信）。
主要经济体统计部门：国民经济核算与数字经济增加值公报。
公开独角兽/高成长数字企业榜单（近似口径）。

说明Notes

本版采用 CPPPS 自有评价算法（规模 + 质量 + 创新 + 贡献四维模型，非简单转载国际榜单名次）：①规模 S=0.40·ln(1+数字经济规模)+0.30·ln(1+电商规模)+0.30·ln(1+互联网用户)，大跨度规模指标取对数避免头部垄断；②质量 Q=数字基础设施（5G/宽带）；③创新 I=0.50·数字技术专利+0.50·数字科技独角兽；④贡献 C=产业数字化（数字赋能实体，CPPPS 特色，突出制造业数字化领先经济体的真实价值）；⑤综合指数=100×(0.35·S+0.20·Q+0.20·I+0.25·C)。数据：数字经济规模、电商、互联网用户、基础设施、专利、独角兽、产业数字化均为公开常识近似值，以官方为准。
This edition adopts the CPPPS proprietary evaluation algorithm (a four-dimension model of scale + quality + innovation + contribution, not a simple reproduction of international list rankings): ① Scale S=0.40·ln(1+digital economy scale)+0.30·ln(1+e-commerce scale)+0.30·ln(1+internet users), with wide-span scale indicators log-transformed to avoid top-tier monopoly; ② Quality Q=digital infrastructure (5G/broadband); ③ Innovation I=0.50·digital technology patents+0.50·digital tech unicorns; ④ Contribution C=industry digitalization (digital empowerment of the real economy, CPPPS signature, highlighting the real value of manufacturing-digitization-leading economies); ⑤ Composite index = 100×(0.35·S+0.20·Q+0.20·I+0.25·C). Data: digital economy scale, e-commerce, internet users, infrastructure, patents, unicorns, and industry digitalization are all public approximate values, subject to official figures.

全球数字经济指数Digital Economy Index