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Table 1 The evaluation system of CCEI

From: Cloud economy and its relationship with China’s economy—a capital market-based approach

First-tier indices

Definitions of first-tier indices

Second-tier indices

Technology Cloud Index (TCI)

1. Internet as a carrier

Mobile Payments [885333], Cloud Computing [885362], Big data [885452], Network Security [885459], Robotics [885517], 3D Printing [885537], 5G [885556], Satellite Navigation [885574], Virtual Reality [885709], Artificial Intelligence [885728], Quantum Communications [885730], Automatic Pilot [885736], Blockchain [885757], Facial Recognition [885759], Smart Speaker [885771], Speech Technology [885772], Industrial Internet [885783], Edge Computing [885790], Digital Twins [885820], RCS [885889]

2. Provide necessary technical support for cloud economy

3. Technology research and development and production as the main business

City Cloud Index (CCI)

1. Internet as a carrier

Smart Grid [885311], Internet of Things [885312], Smart City [885378], Smart Healthcare [885402], Drones [885564], Internet of Vehicles [885662], Online Car-hailing [885753], WeChat Mini Program [885754], Internet Healthcare [885765], Intelligent Transportation System [885766], Auto Retail [885768], Intelligent Logistics [885770], Internet of Things in Power Systems [885819], ETC [885861], Data Center [885887]

2. Closely related to the daily life of urban and rural residents

3. Directly or indirectly involved in the process of urbanization construction

Platform Cloud Index (PCI)

1. Internet as a carrier

Apple Concepts [885376], Alibaba Concepts [885611], Ant Group Concepts [885749], Tencent Concepts [885779], Xiaomi Concepts [885785], Baidu Concepts [885797], Huawei Concepts [885806]

2. Including local cloud computing enterprises or other companies having direct business contacts with them

3.Provide Internet finance and other services for third parties

Online Cloud Index (OCI)

1. Internet as a carrier

Culture media [885418], Online Education [885480], Online Tourism [885497], Webcast [885788], Mobile Games [885457], Online Games [885603], E-Sports [885737], Cloud Games [885874], Internet Celebrity Economy [885876], Cloud Office [885881]

2. Provide online services for third parties (Cultural, educational, entertainment services and etc., excluding Internet financial services)

3. Internet services as the main business

Financial Cloud Index (FCI)

1. Internet as a carrier

E-commerce [885420], Internet finance [885456], Rural E-commerce [885629], Cross-border E-commerce [885642], Internet Lottery [885647], Medical E-commerce [885661], Digital Currency [885866], Internet Insurance [885767], New Retail [885784], C2M Concepts [885888]

2. Not a local famous cloud computing enterprise

3. No direct business dealing with domestic famous cloud computing enterprises

4. Provide Internet financial services for third parties

  1. First-level indices and their definitions are developed by the authors and are used to identify the second-tier indices from the concepts stock of the RoyalFlush iFinD Index on August 31, 2020. The column of second tier indices shows the key words and search codes [in square brackets] they use to identify the second-tier indices. Readers can use the codes to obtain the corresponding stock data in RoyalFlush iFinD database. It should be noted that the number of stocks under each conceptual category may change over time. The data involved in CCEI is taken from August 31, 2021. If readers are interested, we can provide all the search codes of RoyalFlush iFinD as of August 31, 2021