How Central Banks Can Win the Digital Currency Race

Center for Strategic and International Studies | Philip Luck, Richard Gray, and Justin Hu

Central bank digital currency (CBDC) programs in the Bahamas, Nigeria, the Eastern Caribbean, India, and China have failed to achieve widespread retail adoption due to design architectures that prioritize sovereignty and security over user utility. This underutilization leaves sovereign currencies vulnerable to displacement by private payment networks and shadow financial infrastructures.

While early initiatives like the Bahamian Sand Dollar plateaued and Nigeria's eNaira wallets went unused, private fast-payment systems captured mass demand. Brazil's Pix and India's Unified Payments Interface succeeded by offering subsidized, low-cost merchant rates and permitting nonbank market access. Permissioned CBDCs lack this edge. Consequently, the Eastern Caribbean Central Bank suspended DCash 2.0 in February 2026, while China restructured its eCNY 2.0 to route balances onto commercial balance sheets. To prevent the growth of sanction-bypassing shadow rails like Ruble-pegged A7A5, future sovereign digital currency strategies must shift toward open, fast-payment architectures.

Comment

The structural restructuring of China's eCNY 2.0 exposes the acute strategic trade-off between absolute state control and market-driven user adoption. By attempting to bypass commercial intermediaries, early iterations of the sovereign digital yuan failed to challenge the entrenched duopoly of Alipay and WeChat Pay. This state-centric design choice prioritised regulatory surveillance over consumer convenience, leaving the digital yuan unable to compete with private mobile payment interfaces. Consequently, the People's Bank of China had to yield operational ground, transferring retail balances back to commercial bank balance sheets to sustain the project.

This operational retreat by the People's Bank of China reveals the mechanism of the retail trilemma, where central banks cannot simultaneously enforce strict holding limits and achieve mass transaction volume. To maintain monetary stability and prevent bank runs, the People's Bank of China restricted individual eCNY holdings, which directly disincentivised merchants from integrating the rail. In contrast, private platforms like Alipay thrive precisely because they operate without these sovereign constraints, leveraging unrestricted liquidity to offer high-yield wealth management products. The eCNY 2.0 compromise demonstrates how sovereign digital currencies face marginalisation unless they integrate directly with commercial banking networks.

Strategic Question for Discussion

If the People's Bank of China continues to integrate eCNY 2.0 with commercial bank balance sheets, does the instrument risk losing its unique sovereign security advantages, or does this compromise represent a necessary evolution for state-backed digital currencies?

The trajectory indicates that integrating eCNY 2.0 with commercial banks dilutes the central bank's direct control over retail transaction data, partially compromising its original sovereignty goals. However, the available evidence points toward this compromise as a prerequisite for survival, as leveraging commercial distribution networks is the only way to match the user-side convenience of Alipay. My assessment is that the People's Bank of China will accept this reduced direct control to prevent the complete marginalisation of its digital currency initiative.

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