The United States suspended the dollar’s convertibility into gold, a key promise under the Bretton Woods system. This “Nixon Shock” undermined the fixed-but-adjustable exchange rate framework because other countries could no longer rely on gold conversion at an official price. It set off a series of negotiations and crises that pushed major currencies toward floating rates.
Major industrial countries negotiated new currency parities centered on a devalued U.S. dollar and wider trading bands. The agreement aimed to restore a rules-based fixed-rate system, but it did not address underlying pressures such as capital flows and differing inflation rates. Its short lifespan highlighted that the old Bretton Woods approach was failing.
After renewed market pressure and repeated realignments, the Group of Ten effectively abandoned attempts to maintain fixed parities. Key currencies began floating against each other, and exchange rates became more market-determined (though governments could still intervene). This created a gap between real-world practice and the IMF’s formal rules, which still reflected the earlier par-value system.
Once floating had become the practical reality, IMF members worked to rewrite the IMF’s rulebook to match the new international monetary system. The main issues included how to treat gold in the system and what exchange-rate choices members could legally make. These negotiations built toward the package later known as the Jamaica Agreement.
The Second Amendment’s exchange-rate rules (Article IV) required members to collaborate with the IMF to promote stability, but allowed a range of exchange arrangements consistent with the system “prevailing on January 1, 1976.” This codified the move away from mandatory par values and made it legally possible for members to maintain floating rates. It also created the legal basis for expanded IMF surveillance over members’ policies.
Meeting in Kingston, Jamaica, the IMF’s Interim Committee agreed on major reforms to the international monetary system. The understandings supported members’ ability to choose their exchange-rate arrangements within an IMF framework, rather than requiring a single fixed-rate structure. This political deal set the direction for the IMF’s Second Amendment of its Articles of Agreement.
The reform package emphasized exchange-rate stability as a shared goal but recognized that countries might use different systems, including floating or cooperative pegs. It also anticipated a stronger IMF role in monitoring how members’ policies affected exchange-rate stability. This was a shift from enforcing fixed par values toward supervising a more flexible system.
To reduce gold’s official monetary role and redirect resources, the IMF started selling part of its gold holdings. The first Trust Fund gold auction took place on June 2, 1976, beginning a multi-year program. Proceeds supported concessional (low-interest) lending for poorer member countries through the IMF Trust Fund.
On April 1, 1978, the IMF’s Second Amendment became effective after the required member acceptances were reached. This marked the formal legal transition to the post–Bretton Woods framework: flexible exchange-rate arrangements were accepted, and gold’s official role was reduced in IMF rules. The change aligned IMF law with the floating-rate reality that had existed since the early 1970s.
After the amendment took effect, members were required to tell the IMF what exchange arrangements they intended to use and to report changes promptly. This made exchange-rate regime choice a transparent, reportable policy decision rather than an implicit outcome of crisis. It also supported more systematic IMF monitoring of exchange-rate and macroeconomic policies.
Following the Jamaica-era decisions, the IMF sold roughly one-third of its gold holdings through a mix of market auctions and “restitution” sales to members. These transactions helped finance the Trust Fund for concessional lending and reduced gold’s centrality in IMF operations. The program’s scale reflected the practical move away from gold as the anchor of the monetary system.
By the end of the 1976–1980 gold program and with the Second Amendment in force, the IMF’s legal and operational framework broadly matched the post-1973 world of predominantly floating and managed-floating exchange rates. The Jamaica Agreement’s main legacy was not a return to fixed parities, but an IMF-centered system combining member choice of regimes with ongoing surveillance. This completed the IMF’s formal acceptance of floating exchange rates as a core feature of the modern international monetary system.
Jamaica Agreement and IMF Acceptance of Floating Rates (1976-1978)