For more than a decade, the story of digital finance has been told largely by private innovators. Payment apps, stablecoins, tokenised deposits and a parade of crypto ventures have promised to make money faster, cheaper and more programmable. Yet a growing body of argument â the latest expression of which appears in The Economist â holds that the foundation of any durable digital financial system will not be private at all. It will be public money.
The case begins with a simple observation about what money actually is. A banknote in a wallet or a reserve balance at the central bank is a claim on the state. A balance in a payment app, by contrast, is a claim on a company. Most of the time the difference is invisible: users move money between the two without thinking. But the difference becomes decisive in a crisis, when the question of who stands behind a balance suddenly matters more than the slickness of the interface.
That is why public money has historically anchored the system. Commercial bank deposits work as money because they can be redeemed, at par and on demand, for central-bank money. Settlement between banks takes place in central-bank reserves. The private sector supplies most of the innovation, but the unit of account, the final settlement asset and the guarantee of singleness â the principle that a pound is a pound wherever it is held â are public goods.
Digitalisation strains that arrangement in two directions. On one side, cash is fading in many economies, which quietly erodes the public option available to ordinary households. On the other, private digital money is proliferating in forms that sit outside the traditional banking perimeter. Stablecoins, in particular, promise dollar-like convenience while relying on the quality of their reserves and the credibility of their issuers. When those falter, holders discover that par convertibility was a promise rather than a fact.
The policy response takes several forms, and they are not mutually exclusive. Central-bank digital currencies, whether retail or wholesale, would extend public money directly into digital form. Instant-payment systems â publicly operated or publicly mandated rails â offer many of the same benefits without the political complications of a CBDC. Tougher regulation of stablecoin issuers, including requirements on reserves, redemption and disclosure, aims to make private digital money behave more like the bank deposits it resembles. And deposit insurance, supervision and access to central-bank liquidity remain the machinery that converts private claims into something the public can treat as money.
Critics of the public-first approach warn of costs. A widely used CBDC could pull deposits out of banks, squeezing the credit they supply. State-run payment infrastructure may innovate slowly. And digital public money raises genuine questions about privacy and surveillance that cash, for all its inconveniences, simply does not pose.
None of these objections dissolves the underlying argument. They suggest, rather, that design matters enormously: holding limits, tiered access, privacy protections and clear boundaries between what the state provides and what private firms build on top.
The likely outcome is not a choice between public and private, but a division of labour that mirrors the existing one. Private firms will continue to compete on interfaces, credit and services. What they will build on, if the system is to hold together, is a public foundation â one that guarantees that money remains money regardless of which app happens to be displaying it. Read More
Leave a Reply