๐Ÿฅ‡international economics review

Speculative attack

Written by the Fiveable Content Team โ€ข Last updated September 2025
Written by the Fiveable Content Team โ€ข Last updated September 2025

Definition

A speculative attack refers to a rapid and large-scale selling of a currency by investors, often in anticipation of a devaluation or instability in that currency's value. This kind of attack usually occurs when investors believe that a fixed exchange rate regime cannot be maintained due to economic conditions or unsustainable policies. Speculative attacks can lead to significant shifts in currency value and can pressure a government to abandon its fixed exchange rate in favor of a floating regime.

5 Must Know Facts For Your Next Test

  1. Speculative attacks are more common in countries with fixed exchange rate systems where investors perceive weaknesses in the economy.
  2. When a speculative attack occurs, it can lead to rapid depreciation of the affected currency, forcing policymakers to react quickly.
  3. These attacks can create a self-fulfilling prophecy; if enough investors believe a currency will be devalued, their actions can actually cause that devaluation.
  4. Speculative attacks often highlight the vulnerabilities of fixed exchange rate regimes, prompting discussions on the sustainability of such systems.
  5. Historical examples include the 1992 Black Wednesday event in the UK and the 1997 Asian financial crisis, both driven by massive speculative attacks on currencies.

Review Questions

  • How do speculative attacks influence government policy regarding fixed versus floating exchange rates?
    • Speculative attacks can force governments to reconsider their fixed exchange rate policies, as these attacks often expose weaknesses in the underlying economy. When investors begin to sell off a currency en masse, it puts pressure on the government to either defend the peg by using foreign reserves or allow the currency to float freely. If a government decides to abandon the fixed rate in response to a speculative attack, it could lead to greater volatility but may also restore investor confidence in the long run.
  • Analyze the relationship between speculative attacks and investor confidence in fixed exchange rate regimes.
    • Speculative attacks are closely tied to investor confidence in fixed exchange rate regimes. When investors perceive that a country's economic fundamentals are weak or that its currency is overvalued, they may engage in speculative selling, betting against the currency. This behavior can lead to significant losses for those defending the peg and may cause them to abandon the fixed rate altogether. In this way, speculative attacks act as indicators of diminishing confidence and can ultimately destabilize previously stable systems.
  • Evaluate the implications of speculative attacks on global financial markets and international economic stability.
    • Speculative attacks can have far-reaching implications for global financial markets and international economic stability. When a major currency is attacked and devalued, it can trigger panic selling in related currencies and affect trade balances. Countries with interconnected economies may face destabilization, leading to broader financial crises. Furthermore, the reaction from central banks and governments can also influence market expectations and investor behavior, creating a ripple effect that impacts global liquidity and capital flows.