The share of the US dollar in global reserves fell to 57.7% in the first quarter of 2025, its lowest level in decades. This gradual erosion coexists with overwhelming digital dominance, with dollar-backed stablecoins reaching a capitalization of 280-300 billion in September-October 2025. Economist Kenneth Rogoff, in his analysis “Our Dollar, Your Problem,” dissects this tension between institutional legacy and technological mutations that are redefining the global monetary architecture.
Stablecoins reinforce dollar supremacy despite reserve erosion
99% of stablecoins issued globally remain backed by the US dollar, creating an unprecedented form of digital dollarization. This technological dominance contrasts with the progressive erosion of the dollar in official reserves held by central banks, declining from 71% in 2000 to less than 58% today.
USDC and Tether, the two main stable digital currencies, inject billions of dollars daily into the global digital economy. These tools amplify demand for US Treasury bonds, as their issuers must hold dollar assets to guarantee parity. This new digital infrastructure indirectly reinforces US debt financing, with stablecoin issuers building reserves in government bonds to secure their emissions.
This new form of monetary influence largely escapes traditional foreign exchange reserve statistics. Unlike central bank reserves, which are recorded and monitored, stablecoins circulate in a decentralized ecosystem where demand for dollars reconstitutes automatically. According to the Federal Reserve, 9 trillion dollars of US Treasury bonds are held by official and private foreign investors, representing 32% of all negotiable Treasury bonds in circulation.
China’s digital yuan tests weaknesses in the Western system
China is deploying its digital yuan in 26 cities across 17 provinces, already reaching 180 million users according to the People’s Bank of China. This infrastructure enables instantaneous cross-border payments without passing through the SWIFT network, dominated by Western institutions. Initial tests with Russia, Iran, and several Latin American countries reveal the geopolitical ambition of the project.
In 2024, Sino-Russian trade exchanges reached 240 billion dollars, of which 95% was settled in yuan or rubles, completely bypassing the dollar system.
This digital alternative relies on centralized state infrastructure, a striking contrast with the apparent decentralization of Western cryptocurrencies. Beijing controls every transaction, every flow, transforming its digital currency into a tool for surveillance and economic influence.
Effectiveness remains limited: the yuan still represents only 2.3% of global reserves. But the technical infrastructure is advancing rapidly, creating the foundations of a parallel system that could further fragment American monetary hegemony.
Geopolitical fragmentation accelerates the search for alternatives
Western economic sanctions against Russia produced an unexpected side effect: the acceleration of de-dollarization in emerging countries. The exclusion of Russian banks from the SWIFT system demonstrated the vulnerability of countries dependent on Western financial infrastructure.
India receives approximately 35-40% of its crude oil from Russia by volume, and these transactions are settled through the rupee-ruble clearing system which covers more than 90% of all Indo-Russian trade, while Saudi Arabia accepts Chinese yuan for certain oil sales. These bilateral mechanisms progressively fragment the dollar’s monopoly over energy commodities.
New South-South commercial corridors amplify this trend. Global trade in goods and services exceeds 15 trillion dollars annually, with a growing share using alternative currencies, notably through BRICS exchanges and bilateral agreements between major emerging powers. This dynamic feeds on itself: the more countries diversify their transaction currencies, the more they accumulate alternative reserves.
The Fed monitors these developments closely. Its semiannual reports document an erosion of 0.5 percentage points per year of the dollar’s share in global reserves, a stable trend since 2008.
Technical challenges still limit alternative monetary options
Despite these pressures, the dollar retains structural advantages that are difficult to replicate. The depth of the US Treasury bond market, with 24 trillion dollars in outstanding debt, offers unparalleled liquidity. No other currency has such a vast and liquid bond market.
Digital alternatives face major technical obstacles. Stablecoins require stable Internet infrastructure, limiting their adoption in poorly connected regions. The digital yuan depends on strict state control, deterring trading partners concerned about their monetary sovereignty.
The euro, the only credible alternative by size, represents only 20% of global reserves. European political fragmentation limits its international projection, despite a GDP comparable to that of the United States.
Bitcoin and decentralized cryptocurrencies remain too volatile to serve as a reliable store of value. Their combined capitalization of 2.4 trillion dollars remains below that of Apple and Microsoft combined.
The monetary transition will be gradual but inexorable
Monetary history teaches us that transitions in hegemony unfold over decades. The British pound dominated the international system for a century before gradually ceding its place to the dollar between 1914 and 1944. This precedent suggests a slow evolution rather than a sudden shift.
Technological innovations, however, accelerate the process. Central banks are developing their digital currencies: 130 countries are exploring this path according to the IMF. This technological race transforms the very nature of international currency, moving from physical reserves to instantaneous digital flows.
Artificial intelligence amplifies these mutations. Algorithms already optimize commercial flows, facilitating multi-currency transactions and reducing exchange costs. This technical efficiency could democratize the use of alternative currencies.
The Fed is adapting its strategy. Its recent communications emphasize the need to preserve the dollar’s attractiveness through innovation rather than constraint. The US digital dollar project, still embryonic, testifies to this growing awareness.
The international monetary system is evolving toward a multipolar model where several currencies will coexist according to geographic zones and sectors of activity. This controlled fragmentation could paradoxically stabilize the global system by reducing its dependence on a single currency.
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