The Triffin Dilemma, named for the Belgian-American economist Robert Triffin, identifies an inherent contradiction in any international monetary system that relies on a single national currency as the principal global reserve asset. Triffin set out the problem in his 1960 book Gold and the Dollar Crisis and in testimony before the U.S. Congress Joint Economic Committee that same year. Under the Bretton Woods system established in 1944, the U.S. dollar was fixed to gold at $35 per ounce and other currencies were pegged to the dollar. To furnish the world with the dollar liquidity needed for expanding trade and reserves, the United States had to run persistent balance-of-payments deficits; yet those same accumulating deficits steadily undermined foreign confidence that the dollar could remain convertible into gold at the fixed rate. The reserve issuer is thus trapped: providing liquidity erodes confidence, while protecting confidence starves the world of liquidity.
The mechanism turns on the dual role a reserve currency must play — serving simultaneously as a national medium of exchange and as the world's store of value. Short-run national interest (a strong, stable, convertible currency) collides with the long-run systemic need for an ever-growing supply of the reserve asset. As foreign dollar holdings in the 1960s came to exceed U.S. gold stocks, the contradiction became acute. The dilemma was vindicated when the system broke down: the London Gold Pool collapsed in 1968, and on 15 August 1971 President Richard Nixon suspended dollar–gold convertibility (the "Nixon Shock"), with the Smithsonian Agreement of December 1971 failing to save fixed parities before the system gave way to floating rates by 1973.
Triffin's proposed remedy was a supranational reserve asset not tied to any one nation, an idea partially realised when the IMF created Special Drawing Rights (SDRs) in 1969. The dilemma did not vanish with Bretton Woods: even under floating exchange rates, the dollar's continued dominance forces the United States to supply reserves and safe assets to the world, sustaining structural current-account deficits — what Barry Eichengreen and others discuss as "exorbitant privilege." In March 2009 People's Bank of China Governor Zhou Xiaochuan explicitly invoked Triffin in calling for a "super-sovereign reserve currency" based on an expanded SDR, reviving the debate after the global financial crisis. As of 2026 the dollar remains the dominant reserve currency (roughly three-fifths of allocated reserves), and the dilemma continues to frame discussions of de-dollarisation, BRICS currency initiatives, and renminbi internationalisation.
For the examinations, the Triffin Dilemma is a high-yield concept in international economics and the global financial architecture. UPSC tests it in GS Paper III (economy) and in the international-relations dimensions of GS Paper II; the FSOT probes it within U.S. foreign-economic policy and the legacy of Bretton Woods. The typical question angle asks candidates to explain the contradiction between liquidity provision and confidence, to link it to the 1971 collapse of Bretton Woods, and to evaluate proposed alternatives such as SDRs or a multipolar reserve system. Strong answers name Triffin, the 1944 Bretton Woods conference, the 1971 Nixon Shock, and the 1969 creation of SDRs.
Example
In March 2009, PBoC Governor Zhou Xiaochuan invoked the Triffin Dilemma to argue that an expanded SDR should replace the dollar as a "super-sovereign" reserve currency after the global financial crisis.
Frequently asked questions
Robert Triffin, a Belgian-American economist, articulated it in his 1960 book Gold and the Dollar Crisis and in testimony to the U.S. Congress that year. He warned that the Bretton Woods system was structurally unsustainable.