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Economy · Event

European ERM crisis and Britain’s Black Wednesday

1992.09.16

Despite a large-scale defense of sterling, the United Kingdom suspended participation in the Exchange Rate Mechanism.

Germany (then West Germany)United KingdomItalyExchange ratesInterest rates

Shows the United Kingdom’s suspension of ERM participation as the representative event, rather than the entire European crisis.

Conditions at the time

German interest rates diverged from the policy needs of countries with weaker economies.

How events unfolded

On 9/16, after intervention and announcements of rate increases, the United Kingdom suspended ERM participation.

Stakeholders and impacts

The UK government, the Bank of England and other European monetary authorities responded to exchange-rate pressure.

Information available at the time

The Bank of England’s contemporary report explained the conflict between domestic policy objectives and exchange-rate commitments.

Findings confirmed later

After leaving, the United Kingdom gained room to adjust monetary policy.

Alternative interpretations and limitations

The UK suspension date does not mean every European country left the framework or that the crisis ended.

Source-based context and interpretation

The Bank of England's quarterly account records large sterling purchases and announced defensive rate increases failing to preserve the exchange-rate floor. ERM membership constrained UK easing through German rates; suspension allowed a rate reduction and depreciation to ease monetary conditions. ASSETCASTING interpretation: Failure to defend an exchange-rate commitment can coexist with greater domestic-policy flexibility. Examine the conflict between the parity and domestic objectives rather than only speculators' success; later recovery cannot be attributed solely to suspension.

Evidence coverage through 1992-09 · Sources checked 2026-10-14

Related events and periods1

Historical events do not guarantee future recurrence or investment performance.