Abstract：The digital identity system is a key component of modern society's digital transformation. Its design and construction require significant cost investment, and it is essential to ensure the system's long-term security and stable operation while considering economic feasibility. Continuous optimization of the economic construction of digital identity systems, including the refinement of economic principles, economic frameworks, and economic tools, can help achieve the goals of security, efficiency, and fairness. The design philosophy of digital identity systems should adhere to economic principles, balancing data security with cost efficiency and aligning privacy protection with data utilization. Additionally, fostering a competitive market environment to prevent monopolies and maximize economic benefits is critical. The design of digital identity systems should be guided by standards such as the uniqueness of digital identities, the security of authentication and authorization, and the collaborative sharing of identity information. This can be achieved through data storage systems, data quality management and monitoring systems, incentive-privacy balance mechanisms, and internal system collaboration. The economic structure of digital identity system design involve constructing data property rights models through distributed ledgers, smart contracts, and data trust networks. Furthermore, data transaction models should be established by defining participant roles, creating fair data trading platforms, and implementing data governance incentives. Compliance-oriented data usage models should also be enhanced through privacy protection for users, compliance with data usage regulations, and data value assessment.
艾尚乐. 数字身份系统设计的经济构造：理念、内容与模式[J]. 《深圳大学学报》（人文社科版）, 2025, 42(4): 96-108.
AI Shang-le. Economic Construction of Digital Identity System: Concepts, Content, and Models. , 2025, 42(4): 96-108.
2025, Vol. 42 
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