Are floating exchange rates better than fixed or managed exchange rates?

• →A floating exchange rate is one in which the external value of a currency is determined entirely by market forces. The interaction of supply and demand in the foreign exchange market determines the exchange rate without government or central bank intervention.
• →By contrast, a fixed exchange rate system pegs a currency's value to another currency or basket of currencies, requiring authorities to intervene to maintain that value.
• →A floating system offers the significant advantage of automatic adjustment to external shocks. For example, if a country runs a persistent current account deficit, its currency will tend to depreciate under a floating system, making exports cheaper and imports more expensive, which works to correct the imbalance without the need for painful domestic deflation or the depletion of foreign currency reserves.
• →This means that monetary policy can remain focused on domestic objectives such as controlling inflation or supporting employment, rather than being used to maintain a fixed rate.
• →Floating exchange rates grant greater macroeconomic policy autonomy, which is particularly valuable for economies with different business cycles from their trading partners. Countries that face frequent external shocks ,such as commodity exporters, may find floating rates more suitable.
• →However, a floating rate also introduces exchange rate volatility, which can deter foreign direct investment and create uncertainty for firms engaged in international trade, potentially reducing long-run growth.

• →Automatic adjustment mechanism: Under a floating rate, currency depreciation following a current account deficit reduces the relative price of exports and raises the cost of imports, helping to self-correct external imbalances without fiscal or monetary tightening.
• →Policy autonomy vs. the impossible trinity: A country cannot simultaneously maintain a fixed exchange rate, free capital mobility, and an independent monetary policy — floating rates resolve this trilemma by sacrificing the peg, freeing domestic interest rate policy.
• →Speculation and volatility: Floating rates are vulnerable to speculative flows that can push exchange rates far from their fundamental value, whereas a credibly maintained fixed rate removes this source of uncertainty but at the cost of reserve losses if the peg comes under attack.
• →Import of monetary credibility: Smaller or less credible economies may deliberately fix to a low-inflation anchor currency (such as the dollar or euro) to borrow that currency's credibility and reduce inflationary expectations domestically.
• →Marshall-Lerner condition and J-curve: For exchange rate depreciation under a floating system to actually improve the current account, the combined price elasticities of demand for exports and imports must sum to more than one; in the short run, the J-curve effect means the current account may worsen before it improves.

This question assesses students' ability to evaluate the merits and limitations of alternative exchange rate systems, drawing on the trade-offs between policy flexibility, macroeconomic stability, and exposure to speculative pressures. It is rooted in AQA spec point 4.2.6.4 — Exchange rate systems, which requires students to understand and compare floating, fixed, and managed exchange rate arrangements and to assess their effects on macroeconomic performance. High-scoring responses are expected to sustain two-sided analysis, apply economic theory rigorously to real-world contexts, and reach a justified conclusion that is sensitive to country-specific conditions rather than asserting one system is universally superior.

Examined 2 times across AQA since 2022.

On both occasions the question appeared as an optional 25-mark item on Paper 2, carrying the command word "Assess", confirming that a balanced, evaluative approach — rather than a purely descriptive one — is what the mark scheme rewards.

• →The International Economy — comparative advantage and the gains from trade provide the broader international economic context within which exchange rate systems operate, helping to explain why the choice of regime matters for trade flows and economic welfare.