Why 130 countries studied digital cash and few shipped
Central bank digital currencies were the next big thing for a decade. The pilots keep ending quietly.
By The Ledger · · 2 min read
Nearly every central bank on earth has studied issuing digital cash. A decade in, only a handful have launched one, and adoption where launched rounds to a rumour. The gap between the research budget and the result is the story.
What actually happened
The case for a central bank digital currency was written in the shadow of two fears: private stablecoins replacing sovereign money, and cash withering until the public loses its only claim on the central bank. Both fears were reasonable. Neither, so far, has arrived with the force the pilots assumed.
Meanwhile the boring alternative kept shipping. Instant-payment systems — bank money moving in seconds, around the clock — reached billions of users through existing accounts, no new money required.
Who pays, who gains
A retail digital currency competes with the banks the central bank supervises: every unit held at the central bank is a deposit that left a commercial bank. That is a funding problem in calm times and a bank-run accelerator in bad ones — which is why launched designs arrive hedged with holding caps and no interest, hedges that also remove most reasons to use them.
The mechanism
Payment systems live or die on a two-sided habit: shops take what people carry; people carry what shops take. Instant rails borrowed the existing habit of bank accounts. A new currency must build one from zero, and no pilot has found the offer that beats what the phone already does.
What happens next
The wholesale versions — settlement between banks, cross-border corridors — continue, useful and invisible. The retail dream retreats to an option kept warm. The constraint nobody mentions in the white papers: the problem a retail digital currency solves best is a problem — the death of cash — that arrives on a schedule, and the schedule keeps slipping.