The international monetary system & the dollar

The classical gold standard and its collapse

The international monetary system is the set of rules, institutions and conventions governing how currencies are valued and exchanged across borders. Under the classical gold standard (c. 1870–1914), major currencies were convertible into gold at fixed parities; the Bank of England, anchoring sterling, made London the hub of global finance. The system enforced discipline—balance-of-payments deficits drained gold and forced domestic deflation—but it sacrificed monetary autonomy and shattered under the financing demands of the First World War.

The interwar attempts to restore gold (Britain returned in 1925 at the prewar parity under Churchill, a decision Keynes attacked in The Economic Consequences of Mr. Churchill) ended in competitive devaluations, the 1931 sterling float, and beggar-thy-neighbour protectionism that deepened the Great Depression.

Bretton Woods, 1944

The Bretton Woods Conference (July 1944, New Hampshire) designed the postwar order. The defeated Keynes plan for an international clearing union and a synthetic currency (the bancor) lost to the American White plan. The result: a gold-exchange standard in which the US dollar was pegged to gold at USD 35 per ounce, and other currencies pegged to the dollar within ±1% bands, adjustable only for 'fundamental disequilibrium.'

Two institutions were born: the International Monetary Fund (IMF), to provide short-term balance-of-payments financing and police par values, and the International Bank for Reconstruction and Development (IBRD), the original World Bank. The dollar became the world's reserve and settlement currency by design.

The Triffin Dilemma and the Nixon Shock

Belgian-American economist Robert Triffin warned the US Congress in 1960 of a structural contradiction: the world needed ever-more dollars for liquidity, but the more dollars circulated abroad, the less credible was their convertibility into a finite US gold stock. The Triffin Dilemma is a recurring exam favourite.

The strains—Vietnam War deficits, French gold redemptions under de Gaulle, and overvaluation—forced President Richard Nixon on 15 August 1971 to suspend the dollar's convertibility into gold (the 'Nixon Shock'). The Smithsonian Agreement (December 1971) tried to salvage fixed rates but failed; by 1973 the major economies floated. The Jamaica Accords (1976), amending the IMF Articles of Agreement (Second Amendment, effective 1978), legalised floating exchange rates and demonetised gold as the system's anchor. Special Drawing Rights (SDRs), created in 1969, became the IMF's reserve asset, valued today against a basket including the renminbi since 2016.

Why the dollar still dominates

Fiat money replaced gold, yet the dollar's centrality intensified. Roughly 88% of foreign-exchange transactions involve the dollar on one side (BIS Triennial Survey, 2022), and the dollar comprises about 58% of allocated official reserves (IMF COFER, 2024)—down from over 70% in 2000 but still unrivalled. Oil and most commodities are invoiced in dollars (the 'petrodollar' arrangement traces to US–Saudi understandings of 1974), and global trade finance, the eurodollar market and sovereign debt are dollar-denominated.

This is exorbitant privilege, a term coined by Valéry Giscard d'Estaing in the 1960s: the United States borrows in its own currency, funds deficits cheaply, and the Federal Reserve effectively sets global liquidity conditions. The 2008 crisis and the March 2020 'dash for cash' showed the Fed acting as lender of last resort to the world via central-bank swap lines.

The dollar as an instrument of statecraft

Dollar dominance is geopolitical power. Because dollar payments clear through US correspondent banks and the CHIPS system, and because SWIFT messaging underpins cross-border settlement, the US Treasury's Office of Foreign Assets Control (OFAC) can impose sanctions with extraterritorial reach. The 2012 and 2018 measures against Iran, and the freezing of roughly USD 300 billion of Russian central-bank reserves after the February 2022 invasion of Ukraine, demonstrated 'weaponised interdependence.'

De-dollarisation: rhetoric versus reality

These sanctions accelerated talk of de-dollarisation. BRICS states have promoted local-currency trade; China's Cross-Border Interbank Payment System (CIPS) and the digital yuan (e-CNY) offer alternatives; India and Russia have experimented with rupee–rouble settlement. Yet the renminbi remains under 5% of reserves and is constrained by China's capital controls and limited convertibility. No rival offers the dollar's deep, liquid Treasury market, rule-of-law and network effects. The euro (about 20% of reserves) is the only serious second, hampered by the absence of a unified eurozone safe asset.

Why this matters for the exam

For UPSC GS-3 (Indian economy, external sector, BoP) and GS-2 (international institutions), expect questions on the IMF, SDRs, exchange-rate regimes and India's reserve management. FSOT and CSS/BCS test the Bretton Woods architecture, dollar hegemony and sanctions. High-yield retention: USD 35/oz peg; 15 August 1971 Nixon Shock; Jamaica Accords 1976; SDR basket (USD, EUR, CNY, JPY, GBP); the Triffin Dilemma; 'exorbitant privilege'; COFER reserve shares. The PYQ angle favours analytical prompts—'critically examine the prospects of de-dollarisation' or 'discuss reform of the IMF quota system'—so marshal dated evidence, not assertions. Link the impossible trinity (Mundell–Fleming): a country cannot simultaneously have a fixed exchange rate, free capital mobility and independent monetary policy.