A Money View of Offline Payment Functionality (SSRN)
G+D's Lars Hupel argues that offline-capable retail payment systems should use a single issuer, not multiple bank issuers, in the context of CBDC and fast payment system design. The paper compares central bank CBDC, a multi-issuer commercial bank token model, and a single-issuer model for offline value transfer; it finds that multi-issuer offline tokens create foreign-liability, fungibility, and counterparty-risk problems, while a single-issuer structure more closely preserves cash-like bearer behavior. The policy significance is that offline functionality can be built without a central bank-issued instrument, but only if issuance, prefunding, settlement access, and anti-money-laundering controls are centralized enough to preserve finality and risk management. [SSRN]
