If the digital yuan is the state’s bid to control digital money, stablecoins are its mirror image: private digital money, overwhelmingly dollar-denominated, spreading across borders largely outside any single government’s control. The two phenomena are the opposite poles of the same story this coverage keeps returning to — what happens to money, and to monetary sovereignty, when value moves at the speed of the internet. Stablecoins are the side that has grown fastest, and the side that most quietly extends the reach of a single currency: the US dollar.
Begin with what a stablecoin is, because the simplicity is the point. It is a digital token pegged one-to-one to a stable asset — almost always the US dollar — backed by reserves such as cash and short-term US Treasuries, so it holds a fixed value of about one dollar while moving as fast as any blockchain transaction. That combination — the stability of the dollar with the speed and borderlessness of crypto — is what has made stablecoins explode. And the scale is now hard to overstate: the market surpassed $319 billion by April 2026, and dollar-pegged tokens moved on the order of tens of trillions of dollars in transfers during 2025 — a figure that, by several estimates, exceeded the combined annual volume of Visa and Mastercard.
Digital dollarization
Here is the concept that reframes the whole phenomenon, and it is the one this piece wants to underscore. As of late 2025, roughly 99% of all stablecoins in circulation were denominated in dollars, and two private issuers — Tether’s USDT and Circle’s USDC — together command well over 80% of the market. The consequence, which researchers at institutions like the LSE and the IMF have described, is a kind of “digital dollarization”: the dollar circulating across borders through a new, private, blockchain-based channel, reaching people and economies far beyond the United States.
For someone in a country with high inflation or scarce access to dollars, a stablecoin is enormously attractive: it offers refuge in a hard currency without a US bank account, transferable from a phone. For the United States, the effect is a quiet extension of monetary power — because every dollar stablecoin is backed by Treasuries, the growth of stablecoins hardwires new global demand for US debt. And in 2026 this was formalized: the GENIUS Act, signed in 2025, requires dollar stablecoins to hold full one-to-one reserves in cash and short-term Treasuries and to undergo regular attestations, turning them from a gray-zone product into a regulated form of digital cash. Far from constraining the phenomenon, sound regulation has accelerated it: industry data describe a “hockey stick” jump in daily volumes after the Act.
The sovereignty problem for emerging economies
This is where the gap this coverage tracks appears, and it is a structural one. When citizens of a country increasingly save and transact in dollar stablecoins, that country’s central bank gradually loses grip on its own monetary policy. The Bank for International Settlements has warned that the expansion of dollarized stablecoins erodes the transmission of monetary policy in emerging economies — meaning a central bank’s decisions on interest rates or money supply bite less when a growing share of economic life runs on a foreign digital currency it does not issue or control. The IMF, for its part, has flagged run risks akin to those of money-market funds: because USDT and USDC concentrate the vast majority of supply, an operational or regulatory failure at either could trigger liquidity stress across the entire system.
The dilemma is acute precisely in the economies that most use these tokens. Stablecoins offer real, immediate benefits to ordinary people — protection from inflation, cheap remittances, dollar access without bureaucracy. But the aggregate effect can hollow out a national currency and narrow a government’s room to maneuver. It is a textbook case of individually rational choices producing a collective vulnerability, and most affected states have barely begun to craft a response.
The geopolitics: dollar vs. yuan vs. euro
Stablecoins do not exist in a vacuum; they are one move in a larger contest over the future of money. The contrast with China is direct: where Beijing answers with a sovereign, controlled digital currency that now even pays interest, the US approach is to let private, dollar-backed stablecoins flourish under a regulatory framework that, by design, deepens global dollar demand. Europe, wary of both, is advancing a digital euro framed explicitly as a “sovereignty” project, and forcing unauthorized stablecoins off its market under its MiCA regime. Other states pursue their own paths to keep private stablecoins from taking root locally.
The result is a three-way race over the plumbing of global finance — private dollar tokens, state CBDCs, and regional alternatives — in which most countries are not designers of the rails but users of whichever reaches them first. For the dollar, the strategic prize is significant: even amid talk of gradual de-dollarization in traditional reserves, digital dollarization through stablecoins pulls in the opposite direction, extending the currency’s functional reach.
Two readings, with comparable weight
The phenomenon admits two legitimate interpretations, worth presenting without tilting the scale.
One reading emphasizes the benefits and the inevitability: stablecoins give hundreds of millions of people access to a stable currency and to fast, cheap payments that the traditional banking system never offered them; regulated under frameworks like the GENIUS Act, they are becoming a legitimate financial infrastructure layer, and fighting them is both futile and counterproductive. From this angle, the task is not to debate their legitimacy but to integrate them with rules that preserve efficiency without sidestepping systemic safeguards.
The other reading stresses the risks to sovereignty and stability: that digital dollarization erodes the monetary autonomy of vulnerable economies, concentrates systemic risk in two private issuers, and deepens dependence on a foreign currency and on US debt markets. From this angle, the convenience for individuals masks a collective cost, and states that fail to respond — with their own digital currencies, with regulation, or with capital-flow management — risk ceding a core attribute of sovereignty.
It is not for this outlet to decree which reading weighs more. What can be stated is that both are true at once: the benefit to individuals is real, and so is the erosion of monetary sovereignty. The convenience and the cost are two faces of the same coin.
What this reveals
What stablecoins add to the coverage is the private-sector counterpart to the digital yuan: where the e-CNY is money as sovereign control, the dollar stablecoin is money as borderless private infrastructure — and, almost incidentally, as an instrument of one country’s monetary reach. Between those poles sits the future of money, and most countries will experience it less as a choice they make than as a current they are caught in.
The verifiable fact is that dollar-pegged stablecoins have reached a scale rivaling the largest payment networks, that 99% of them extend the dollar’s reach in a “digital dollarization” now formalized by US law, and that this erodes the monetary grip of vulnerable economies while offering real benefits to their citizens. Whether countries will manage this phenomenon — regulating, building alternatives, or simply adapting — or be swept along by it will depend on decisions not yet made: on whether central banks devise responses, on whether the systemic risks concentrated in a few issuers are contained, and on whether the convenience for individuals is reconciled with the autonomy of states. As in every story of this kind, what is decisive is not the technology of the digital dollar, but who benefits from its spread — and who quietly pays for it.