During the Great Depression of the 1930s, countries attempted to shore up their failing economies by sharply raising barriers to foreign trade, devaluing their currencies to compete against each other for export markets, and curtailing their citizens' freedom to hold foreign exchange. These attempts proved to be self-defeating. World trade declined sharply (see chart below), and employment and living standards plummeted in many countries.
This breakdown in international monetary cooperation led the IMF's founders to plan an institution charged with overseeing the international monetary system—the system of exchange rates and international payments that enables countries and their citizens to buy goods and services from each other. The new global entity would ensure exchange rate stability and encourage its member countries to eliminate exchange restrictions that hindered trade.
By the early 1960s, the U.S. dollar's fixed value against gold, under the Bretton Woods system of fixed exchange rates, was seen as overvalued. A sizable increase in domestic spending on President Lyndon Johnson's Great Society programs and a rise in military spending caused by the Vietnam War gradually worsened the overvaluation of the dollar.
End of Bretton Woods system
The system dissolved between 1968 and 1973. In August 1971, U.S. President Richard Nixon announced the "temporary" suspension of the dollar's convertibility into gold. While the dollar had struggled throughout most of the 1960s within the parity established at Bretton Woods, this crisis marked the breakdown of the system. An attempt to revive the fixed exchange rates failed, and by March 1973 the major currencies began to float against each other.
Since the collapse of the Bretton Woods system, IMF members have been free to choose any form of exchange arrangement they wish (except pegging their currency to gold): allowing the currency to float freely, pegging it to another currency or a