Richard Nixon

Initiated a decisive executive policy action on August 15, 1971, that suspended the convertibility of dollar-denominated reserves into gold for foreign governments and closed the so-called gold window. The Nixon administration followed with measures including temporary wage-price controls and import surcharges, but the central monetary consequence was effectively terminating the Bretton Woods mechanism of fixed parities tied to U.S. gold commitments. This concrete presidential decision removed the statutory and practical guarantee that underpinned the postwar dollar parity system. By ending official dollar-to-gold convertibility, the action forced foreign governments and markets to reprice currencies relative to the dollar and to one another, prompting the transition to managed and then freely floating exchange rates in the early 1970s. The immediate operational result was higher exchange-rate volatility, reconfiguration of reserve accumulation practices, and a shift in how international liquidity was provided and settled. That policy turning point reshaped central-bank reserve management, trade invoicing practices, and capital flow dynamics tied to the dollar. The Nixon Shock remains the practical legal and institutional break that converted the USD from a quasi-gold anchor into a fiat reserve currency whose value depends on monetary policy, market expectations, and sovereign balance sheets.