Fixed Exchange Rate Regime Quiz: Pegged Currency System

A fixed exchange rate regime is one in which a government or central bank commits to maintaining its currency at a predetermined value against another currency or asset. Unlike a floating system where market supply and demand freely determine the exchange rate, a fixed regime requires active central bank intervention to prevent the currency from moving away from its target value.

The answer is True. Maintaining a fixed exchange rate is not passive. When market forces push the exchange rate away from the target, the central bank must buy or sell foreign currency to bring it back. If the domestic currency faces downward pressure, the central bank buys it using foreign reserves. If it faces upward pressure, the central bank sells domestic currency. This ongoing intervention is what sustains the peg.

A key benefit of a fixed exchange rate is that it reduces exchange rate uncertainty for businesses. When companies know the exchange rate will remain stable, they can price goods, plan imports and exports, and make investment decisions with greater confidence. This predictability lowers the costs of international trade and can encourage more cross-border economic activity than would occur under a more volatile floating rate.

Fixed exchange rate regimes offer lower currency volatility, a credible nominal anchor that helps control inflation, and enhanced policy credibility when the peg is trusted. The ability to freely adjust the exchange rate is actually a feature of flexible rate systems, not fixed ones. Fixed regimes deliberately sacrifice exchange rate flexibility in exchange for these stability-related benefits.

The answer is False. The impossible trinity in international economics states that a country cannot simultaneously maintain all three of these goals. A country with a fixed exchange rate and free capital movement must surrender independent monetary policy. Interest rates must be aligned with those of the anchor currency country. This fundamental constraint means that fixed rate countries must accept limits on their monetary policy autonomy.

When a country fixes its exchange rate and allows capital to move freely, it loses the ability to independently set its interest rates. Any deviation from the interest rates prevailing in the anchor country would trigger capital flows that create pressure on the exchange rate. To defend the peg, the central bank must adjust interest rates to match the anchor country rather than responding to domestic conditions.

When market selling pressure pushes the domestic currency below its fixed target, the central bank intervenes by buying domestic currency using its foreign exchange reserves. This reduces the supply of the domestic currency in the market, increasing its value and pulling the exchange rate back up toward the peg. The sustainability of this intervention depends entirely on the size of the central bank's foreign exchange reserve holdings.

The answer is False. A fixed exchange rate regime significantly constrains monetary policy. Because maintaining the peg requires keeping interest rates aligned with those of the anchor currency country, the central bank cannot freely raise or lower rates in response to domestic inflation or unemployment. Any independent monetary policy move that creates interest rate differentials can trigger capital flows that put pressure on the fixed exchange rate.

Fixed exchange rate regimes sacrifice monetary policy independence, create vulnerability to speculative attacks when confidence is low, and risk persistent misalignment if economic conditions diverge from those of the anchor currency country. Higher inflation is not an automatic feature of fixed rate regimes. In fact, a fixed rate tied to a low-inflation anchor currency is often used as a tool to reduce domestic inflation.

Exchange rate changes affect both importers and exporters differently. When a domestic currency depreciates, exports become cheaper for foreign buyers, benefiting export industries, while imports become more expensive, raising costs for consumers and firms that rely on foreign inputs. When a currency appreciates, the effects reverse. These distributional effects make exchange rate policy economically and politically significant for many different groups.

The answer is False. A hard peg is actually less flexible than a soft peg. Arrangements such as currency boards involve strict institutional rules requiring full reserve backing for domestic currency and make it extremely difficult for the government to devalue or exit the peg. Soft pegs, by contrast, give policymakers more discretion to adjust the rate if economic conditions require it, making them more flexible but less credible.

Many developing countries adopt fixed exchange rates to borrow credibility from the anchor currency country. By committing to a fixed rate with a stable, low-inflation currency like the US dollar, a country signals its monetary discipline to investors and trading partners. This can lower inflation expectations, reduce borrowing costs, and attract foreign investment, especially for countries whose own monetary policy credibility is limited by a history of high inflation.

Fixed exchange rates support trade through price predictability, contribute to domestic price stability through predictable import prices, and can distort trade if the peg is set at an incorrect level. A balanced trade account is not a guaranteed outcome of a fixed rate. Trade balances depend on relative competitiveness, productivity, and demand conditions, not just the exchange rate regime.

A fixed exchange rate maintains a single target value that the central bank defends through intervention. A managed float, also called a dirty float, allows the exchange rate to move within a range or in response to fundamental pressures, but the central bank intervenes selectively to prevent excessive volatility or to guide the rate within acceptable bounds. A managed float offers more flexibility than a strict peg while still involving active exchange rate management.

The answer is True. If a fixed rate country experiences much higher inflation than its anchor currency partner, its exports become progressively more expensive in foreign markets, undermining competitiveness. Over time, this divergence can create persistent trade deficits and downward pressure on the currency that the central bank must absorb. If the misalignment becomes too large and reserves too thin, maintaining the peg eventually becomes impossible and the fixed rate collapses.