The Plaza Accord was a September 22, 1985 agreement among the finance ministers and central bank governors of France, West Germany, Japan, the United Kingdom, and the United States to deliberately push down the value of the U.S. dollar through coordinated intervention in currency markets and matching changes to domestic economic policy. Signed at the Plaza Hotel in New York City, it remains one of the clearest examples of major governments jointly reshaping exchange rates to redirect global trade flows, and its consequences, both intended and unintended, still shape how policymakers think about currency intervention today.
Why the Dollar Had to Come Down
Between mid-1980 and early 1985, the dollar appreciated roughly 77 percent on a trade-weighted basis against other major currencies.1Federal Reserve Bank of Cleveland. Economic Commentary – The Dollar in the Eighties High real interest rates in the United States pulled in foreign capital, and strong relative growth increased demand for dollar-denominated assets. American-made goods became dramatically more expensive abroad, and the U.S. current account deficit eventually reached about 3.5 percent of GDP by 1987.2Peterson Institute for International Economics. On the Causes of the US Current Account Deficit
American manufacturers, squeezed out of foreign markets, pressed Congress for relief. Congress began work on an omnibus trade bill that threatened a sweeping protectionist regime.3Baker Institute for Public Policy. A Personal Account of the Plaza Accord of September 22, 1985 The major trading nations judged that a managed decline of the dollar was preferable to a wave of tariffs and retaliation.
What the Five Nations Agreed To
The G5 finance ministers and central bank governors met in secret at the Plaza Hotel. Their communiqué acknowledged that the dollar’s strength, along with trade barriers and developing-country debt problems, had produced “large, potentially destabilizing external imbalances,” and called for an “orderly appreciation of the main non-dollar currencies” backed by coordinated intervention in foreign exchange markets.4Margaret Thatcher Foundation. Announcement of G5 Finance Ministers and Central Bank Governors (the Plaza Agreement)5G7 Information Centre. Announcement the Ministers of Finance and Central Bank Governors of France, Germany, Japan, the United Kingdom, and the United States (Plaza Accord)
Behind closed doors, the ambitions were specific. A never-released planning document drafted by U.S. Assistant Treasury Secretary David Mulford set a target of 10 to 12 percent dollar depreciation against the yen and the Deutsche Mark within six weeks, with a ceiling of $18 billion in combined intervention across the five central banks.6National Bureau of Economic Research. The Plaza Accord, 30 Years Later The G5 ministers accepted those targets, though they were never disclosed at the time.
How the Intervention Worked
The mechanics were simple in concept. Central banks sold dollars from their reserves on the open market, and the Federal Reserve coordinated the timing with the Bank of Japan and the Bundesbank for maximum psychological effect. By the end of October 1985, total G10 intervention reached $10.2 billion, well under the planned $18 billion ceiling.7Baker Institute for Public Policy. The Plaza Agreement and Japan: Reflection on the 30th Year Anniversary Markets moved faster than anyone expected. Private traders, unwilling to bet against five central banks, repositioned quickly, and the dollar began falling before governments had spent half their ammunition.
Why Sterilization Mattered
Most of the intervention was “sterilized.” Each central bank offset its dollar sales with domestic open market operations so its own money supply stayed unchanged. A central bank selling dollars and buying yen, for example, would simultaneously sell domestic bonds to absorb the extra yen. That avoided unwanted shifts in domestic interest rates and inflation, but it also weakened the intervention’s force. Sterilized intervention changes which assets traders hold without changing the total money supply, making it a comparatively blunt tool.8National Bureau of Economic Research. The Effectiveness of Foreign-Exchange Intervention: Recent Experience, 1985-1988
The prevailing view among researchers is that monetary and fiscal policy shifts, not the sterilized sales themselves, drove the lasting exchange rate movement.8National Bureau of Economic Research. The Effectiveness of Foreign-Exchange Intervention: Recent Experience, 1985-1988 The announcement effect mattered more than the dollars actually sold. By putting the credibility of five governments on the line in public, the accord changed market expectations overnight.
The Domestic Policy Half of the Deal
Currency sales alone could not sustain a weaker dollar if the forces that had strengthened it stayed in place. Each nation therefore pledged domestic policy changes to reinforce the exchange rate shift.
The United States committed to narrowing its federal budget deficit, which had been pulling in foreign capital. Congress passed the Balanced Budget and Emergency Deficit Control Act of 1985, known as Gramm-Rudman-Hollings, setting progressively lower deficit targets with automatic spending cuts if Congress missed them.9U.S. Department of Labor. Unemployment Insurance Program Letter No. 14-86 Lower deficits were meant to reduce government borrowing, ease pressure on interest rates, and make dollar-denominated assets less attractive to foreign investors.
Japan and West Germany took the opposite side of the bargain, pledging to stimulate domestic demand so their consumers would absorb more imports. Japan expanded public works spending and pursued market liberalization. West Germany focused on structural labor market reforms and tax adjustments. Coordination extended to interest rates as well. In early 1986, the United States, Japan, West Germany, and other nations brought global rates down together, with Japan cutting its discount rate as part of an explicit agreement with the Federal Reserve. The goal was to narrow the interest rate differential that had been drawing capital into the United States.
The J-Curve: Why the Trade Deficit Got Worse First
The dollar began falling almost immediately, but the U.S. trade deficit kept widening for more than two years. The merchandise trade deficit peaked at roughly $165 billion in late 1987, long after the dollar had already dropped substantially, and improvement did not arrive until the first half of 1988.10Federal Reserve Bank of St. Louis. Exchange Rates, Adjustment, and the J-Curve
Economists call this lag the J-curve effect. When a currency drops, import prices rise immediately, but trade volumes adjust slowly. Contracts signed at old exchange rates still have to be fulfilled. Consumers and businesses take time to switch to substitutes. For months or years, a country pays more for the same volume of imports while exports have not yet grown enough to compensate. On a chart, the trade balance dips further before climbing, tracing the shape of the letter J. The nearly three-year lag between the dollar’s peak and the trade balance’s improvement tested the political patience that had motivated the agreement.
What It Did to Japan
No country felt the aftermath more acutely than Japan. The yen appreciated 46 percent against the dollar by the end of 1986, essentially halting Japan’s export-driven growth in the first half of that year.11International Monetary Fund. Box 1.4. Did the Plaza Accord Cause Japan’s Lost Decades? Facing recession and intense domestic pressure, Japanese policymakers responded with aggressive stimulus. The Bank of Japan cut interest rates by roughly three percentage points and held them there until 1989. The government added a large fiscal package in 1987 even though recovery was already underway.
The combination of very low interest rates and expansionary fiscal policy ignited an enormous asset bubble. Stock and urban land prices tripled between 1985 and 1989.11International Monetary Fund. Box 1.4. Did the Plaza Accord Cause Japan’s Lost Decades? When the bubble burst in January 1990, share prices lost a third of their value within a year. The banking system, heavily exposed to real estate and carrying thin capital cushions, was badly damaged. Authorities delayed forcing banks to recognize losses, letting insolvent firms keep receiving credit in what researchers call “zombie lending.” Two decades of stagnant growth followed, the period known as Japan’s Lost Decades.
Whether the Plaza Accord itself caused this disaster is still debated. The IMF’s analysis suggests Japanese monetary policy was far too loose for too long during 1986 to 1988, with interest rates as much as four percentage points below what economic conditions warranted. The accord created the pressure that pushed Japan toward stimulus, but the scale and duration of that stimulus were domestic choices. The experience made Japanese policymakers deeply wary of international currency agreements for decades afterward.
How It Ended: The Louvre Accord
By early 1987, the dollar had fallen roughly 40 percent from its peak, far past the original 10 to 12 percent target.6National Bureau of Economic Research. The Plaza Accord, 30 Years Later Three-quarters of the dollar’s early-1980s appreciation had been reversed.12JSTOR. How Far Has the Dollar Fallen? A controlled correction was threatening to become a rout, and the same governments that had pushed the dollar down now needed to stop its fall.
On February 22, 1987, finance ministers and central bank governors met at the Louvre in Paris and agreed that exchange rates had reached levels “broadly consistent with underlying economic fundamentals,” committing to “cooperate closely to foster stability of exchange rates around current levels.”13G7 Information Centre. Statement of the G6 Finance Ministers and Central Bank Governors (Louvre Accord) The Louvre Accord replaced the Plaza’s active depreciation strategy with a commitment to defend existing exchange rate ranges, closing the aggressive devaluation chapter that had begun at the Plaza Hotel two years earlier.
Why the Plaza Accord Still Comes Up
The accord showed that coordinated government intervention can move currency markets when backed by credible policy changes and political will. It also showed the dangers: an overshoot past the original targets, the years-long lag before trade balances responded, and the asset bubble that engulfed Japan.
Its relevance has not faded. The U.S. current account deficit in early 2025 stood at roughly five percent of GDP, actually larger than the imbalance that prompted the 1985 agreement. Policy discussions about a new Plaza-style accord resurface periodically, though the geopolitical setting has shifted. In the 1980s, the central bilateral tension was between the United States and Japan, two military allies. Today, the dominant trade imbalance is with China, a strategic competitor, making cooperative multilateral currency agreements far harder to negotiate. Recent proposals have leaned toward unilateral tools instead, but the underlying problem the Plaza Accord set out to solve, a dollar too strong for American manufacturers to compete, is the same one driving debate now.