President Franklin D. Roosevelt signed the Gold Reserve Act, transferring U.S. monetary gold to the Treasury and setting an official price of $35 per ounce. This price later became the anchor for the Bretton Woods dollar–gold link, even though most Americans could not redeem dollars for gold.
Delegates from 44 countries met in Bretton Woods, New Hampshire to design a postwar international monetary system. They agreed on a framework of fixed-but-adjustable exchange rates centered on the U.S. dollar, and they created the plans for the IMF and the World Bank.
The Bretton Woods Agreements Act established the U.S. legal basis for participation in the IMF and related arrangements and made the Exchange Stabilization Fund (ESF) operations permanent. Over time, the ESF became a key Treasury tool for managing official reserve and exchange-market operations during Bretton Woods.
The IMF’s Articles of Agreement entered into force, making the IMF a functioning international institution under the Bretton Woods design. This legal step set the rules for member exchange-rate “par values” (official exchange rates) and for official settlement practices tied to gold and the U.S. dollar.
The IMF began financial operations, allowing it to lend to countries with temporary balance-of-payments problems. This mattered for the dollar–gold system because IMF lending and surveillance were meant to help countries keep their exchange rates stable without resorting to destabilizing trade or payment restrictions.
President Dwight D. Eisenhower sent a message to Congress describing U.S. balance-of-payments deficits and growing foreign dollar holdings. These deficits helped rebuild other countries’ reserves, but they also increased foreign claims that could, in principle, be converted into U.S. gold—raising long-run doubts about convertibility.
Economist Robert Triffin published a major critique arguing that a system dependent on U.S. deficits to supply global reserves would eventually undermine confidence in dollar–gold convertibility. His analysis helped frame policy debates about whether the Bretton Woods reserve structure was stable over time.
The Treasury’s ESF resumed foreign exchange market intervention as U.S. policymakers tried to deter capital outflows and reduce incentives for foreign central banks to demand gold. This marked a shift toward active reserve-management tactics—working with foreign central banks—to defend the dollar’s official role.
Major industrial countries set up the General Arrangements to Borrow (GAB), giving the IMF a backstop line of credit. The goal was to strengthen confidence in the fixed-rate system as the United States and United Kingdom—two key “reserve centers”—faced recurring external payments strains.
Central banks had coordinated gold sales in London to help keep the market price near the official $35 level. In March 1968, heavy demand and speculation overwhelmed these efforts, and the arrangement effectively collapsed—showing how hard it was to defend an official gold price while markets moved quickly.
Seven countries agreed to a “two-tier” gold system: official transactions between monetary authorities stayed at the fixed $35 price, while private-market gold traded at a flexible price. This was an attempt to protect official reserves and keep Bretton Woods parities functioning despite rising market distrust of the official gold price.
The IMF’s First Amendment to its Articles took effect, creating Special Drawing Rights (SDRs) as a new reserve asset sometimes called “paper gold.” SDRs were meant to reduce dependence on U.S. deficits and gold as the main sources of global reserves, easing pressures on dollar convertibility.
The IMF began allocating SDRs to member countries, adding to official reserves without requiring new gold supplies or new U.S. deficits. While helpful, these allocations were not enough to fully resolve the underlying mismatch between growing dollar liabilities and limited U.S. gold reserves.
Following the suspension, the United States ceased conducting gold transactions with foreign monetary authorities. With official convertibility no longer operating, U.S. reserve policy shifted away from defending a fixed gold link and toward managing exchange rates and dollar stability by other means.
President Richard Nixon announced that the United States would suspend the official convertibility of dollars into gold for foreign monetary authorities (often called closing the “gold window”). This removed the key promise at the center of Bretton Woods: that official dollar reserves could be exchanged for U.S. gold at a fixed price.
The Group of Ten reached the Smithsonian Agreement, devaluing the dollar by raising the official gold price to $38 per ounce and widening exchange-rate bands. However, the U.S. did not restore official dollar–gold convertibility, so the agreement functioned as a temporary patch rather than a full return to Bretton Woods’ original rulebook.
U.S. dollar–gold convertibility and official reserve policy (1945–1971)