1. China Academy of Information and Communication Technology. White Paper on Global Digital Economy. Beijing: China Academy of Information and Communication Technology (2017).
2. China Academy of Information and Communication Technology. White Paper on Global Digital Economy. Beijing: China Academy of Information and Communication Technology (2021).
3. China Academy of Information and Communication Technology. White Paper on China’s Digital Economy. Beijing: China Academy of Information and Communication Technology (2021).
4. Mao X.. New service trade barriers: Risks, reflections and enlightenment of “digital tax”. International economic and trade exploration 36 (2020).
5. Dai Z.. On tariff issues of international digital product Trade. Theoretical Observation 8 (2015).