The Dollar’s Digital Empire

How private stablecoins are extending America’s monetary power beyond the reach of traditional finance.

Photo by Jakub Żerdzicki, Unsplash

Dollar-pegged cryptocurrency otherwise known as "stablecoins" are worth $322 billion (May 2026), more than the foreign exchange reserves of 95 different countries. For example Canada and Britain. [1] Nigeria on its own has had 60 percent of all stablecoin inflows into sub-Saharan Africa the past 7 years, while their naira has lost 70% of its worth since 2023. [2] [3] In Lebanon banks stopped depositors after 2019 and the Lebanese pound lost over 90 percent of its worth. Tether USDT (USDT) has become the regular currency in Beirut's markets. [4] This did not require a treaty, an embassy or any legislation. All that was needed was a phone and an app store. This is an empire built on technological infrastructure instead of territories and Washington is aware of what it has built. The Treasury Department's statement on their GENIUS Act defines stablecoins as a tool to secure "dollar supremacy". [5] That's an example of a government describing state strategy in public. A European Parliament study comes to the same conclusion from the other side of the ledger by calling it "cryptomercantilism". [6] Washington's posture confirms what the EU fears. Washington's stance has changed from indifference to an open endorsement, becoming formalized in the GENIUS Act of July 2025, whose one year rulemaking deadline arrives this exact month. [7]

This arrangement unsettles an older assumption that only states can issue money worth trusting. A century ago, the German sociologist Georg Simmel argued that a currency's value rests on joint faith in an institution and not the physical paper itself. Tether and Circle (USDC) have privatized that faith and are actively profiting off of it. Their reserves rest on attestations instead of full audits, yet for millions of people in Lagos and Buenos Aires that unaudited promise is more significant than their own central bank's. Economist Hélène Rey of London Business School calls this the privatization of seigniorage is when the profit and power of money creation flow through two companies instead of a national treasury. Rey's own words are the best description available. She argues that dollar stablecoins "could constitute a digital pillar strengthening the exorbitant privilege of the US dollar." That is the thesis of this piece you are reading, stated by one of the field's leading financial economists. The flow is not neutral and every dollar a Nigerian or Lebanese saver moves into USDT stops backing their own currency like the naira or the lira.

Europe shows us the trap closes even on those who foresaw. MiCA passed years before the GENIUS Act, and required stablecoin reserves to sit in EU Bank deposits which Tether could not meet but Circle could. [8] The result was more dollar exposure and not any less as USDT was pushed off European crypto exchanges but USDC was not. [9] Brussels wrote a law to defend the euro and make it more difficult for the dollar. The Commission is now trying to reopen the framework they wrote themselves. [10]

The practicalities back up the strategy. Tether's latest attestation (10/31/25) shows $141 billion in Treasury exposure which puts it at the 17th largest holder of US government debt worldwide. [11] But the movement of the flow isn't in question. Circle's $77 billion in USDC (10/23/25) sits in a Treasury fund run by BlackRock, and tells the same story. [12] Researchers find that this demand pushes down short term Treasury yields. The mechanism is straightforward: US rules, including the GENIUS Act, require issuers to hold reserves in cash or short term Treasuries, so every dollar into USDT or USDC becomes a purchase of US government debt. [13] It is not an aftereffect of stablecoins but done intentionally, the money is flowing out of Abuja and Beirut straight into Washington. IMF researchers found that a one percent increase in stablecoin flow increases currency-parity deviations by roughly 40 basis points, [14] increasing the depreciation that incentivised people into dollars in the first place, a never ending loop that penalises countries losing reserves while paying down the debt of the country gaining them such as the US. Two more examples of countries that suffered from inflation are Argentina where inflation fell from 211 percent in 2023 to 31.5 percent in 2025, the lowest in 8 years then increased to 34 percent by mid 2026, high enough that dollar substitution did not change. [15] Turkey's lira has lost roughly 86 percent of its dollar value since 2020. The GENIUS Act didn't happen to stablecoins, stablecoins happened because Washington wrote the rules that made it profitable, then reaffirmed it in public. A Treasury Department calling stablecoins a tool of dollar supremacy, a Treasuries reserve rule that makes US debt cheaper and a European regulator trying to undo its own law are two examples and evidence the strategy worked, one that does not require a flag planted anywhere because the dollar arrived first. Empires used to be built with garrisons but this one is built with an app and a bank account, and it doesn't need any government's permission to operate, all it takes is your government to fail with its own currency. That failure is the empire's only real prerequisite, and by that measure, it has more territory to expand into in the near future.