The exchange rate system refers to an institutional framework, which determines the exchange rate regime in a given country. The two main exchange rate systems are the fixed exchange rate system and the flexible exchange rate system. The key difference between flexible and fixed exchange rates is that while the former has fluctuating values, the latter allows governments to maintain stability in the value of their currency despite economic conditions.

The differences between flexible and fixed exchange rates should be considered in terms of impacts on inflation, Balance of Payments (BOP), foreign exchange reserves, monetary policy, trade, and investment.

What Is a Fixed Exchange Rate System?

A fixed exchange rate system, also known as a pegged exchange rate, is an exchange rate regime where a currency’s value is anchored to another currency, a basket of currencies, or a commodity such as gold at a predetermined rate or within a specific range.

The government or the central bank is responsible for ensuring the exchange rate remains stable by buying and selling their currency in the foreign exchange market. An example of a country that uses a fixed exchange rate is Hong Kong.

Pros of the Fixed Exchange Rate System

1. Stability and Predictability

A fixed exchange rate regime offers stability and predictable exchange rates, facilitating easier international trade and investment.

2. Control Inflation

The fixed exchange rate system reduces the rate at which a country’s currency depreciates and appreciates, thus, lowering inflation.

3. Reduces Exchange Risks

The government can control, to some extent, the foreign exchange risks, which makes foreign trade and investment attractive.

4. Encourages Trade and Investment

The lower risks and stable exchange rates encourage foreigners to invest in another country’s currency, goods, and services.

Cons of the Fixed Exchange Rate System

1. Limited Monetary Policy

Monetary policy is limited because the central bank has less control over the domestic money supply.

Additionally, the central bank may hesitate to implement its monetary policy regime if it conflicts with the exchange rate policy.

2. Speculative Pressures

Speculation can put immense pressure on the exchange rate, forcing the government to respond.

For example, in case of a currency crisis, the government may be inclined to use foreign exchange reserves to stabilize the currency.

3. Low Response to Economic Fluctuations

The government may respond insufficiently to economic fluctuations, such as persistent trade deficits, surpluses, and domestic unemployment.

4. Trade Deficits and Surpluses

In some cases, the government may experience trade deficits or trade surpluses due to insufficient or inaccurate exchange rates.

What Is a Flexible Exchange Rate System?

A flexible exchange rate system refers to a system where a country’s currency is neither fixed nor pegged to another reference currency, a basket of currencies, or a commodity.

Instead, the value of the currency is determined by the law of demand and supply.

For example, the value of the US dollar, Japanese Yen, and Euro fluctuates constantly depending on market forces.

Pros of a Flexible Exchange Rate System

1. Flexibility

The flexible exchange rate system provides flexibility in adjusting the exchange rate according to the needs of a given economy.

2. Automatically Corrects BOP Deficits and Surpluses

If BOP deficit emerges, the local currency depreciates to make exports cheaper and attractive and imports expensive, therefore correcting the deficit.

Similarly, a BOP surplus leads to currency appreciation, which makes exports expensive and imports cheaper, thus, correcting the surplus.

3. Easy Adjustment

The central bank does not need to maintain a certain exchange rate regime; therefore, it does not need to maintain foreign exchange reserves for this purpose.

4. Monetary Policy

A flexible exchange rate system allows a central bank to implement an independent monetary policy, which can help in controlling domestic inflation.

5. Lack of Speculation

Flexible exchange rates do not allow large-scale speculative attacks that would force the government to devalue or revalue its currency.

6. Adjustment to Shocks

Exchange rates that have the freedom and flexibility to fluctuate enable the economies to respond to and deal with various economic shocks.

Cons of a Flexible Exchange Rate System

1. Exchange Rate Volatility

A flexible exchange rate regime can lead to high exchange rate volatility, making international trade and investment risky and unpredictable.

2. Imported Inflation

A flexible exchange rate regime risks causing inflation from imports since the currency purchased from other countries may be cheaper than the local equivalent products.

3. Exchange Rate Uncertainty

This exchange rate regime makes it difficult to predict the future value of a given currency.

4. Investment Risks

Exchange rates that shift frequently discourage investments and can affect the flow of international capital.

5. Domestic Economy Risks

Domestic markets and businesses can also be affected by frequent fluctuations in exchange rates, for example, through the costs of exports and imports.

6. International Trade Challenges

International trade and investments may face significant challenges because of the high volatility of exchange rates.

Fixed Vs Flexible Exchange Rate Systems

Fixed and Flexible Exchange Rates: Key Difference

The major difference between a flexible and a fixed exchange rate system is the freedom to adjust the exchange rate according to market conditions.

Under a fixed exchange rate regime, the value of a currency is pegged at a specific rate or within a specific range.

For example, the Chinese Yuan and Hong Kong Dollar have been exchanged at a nearly fixed rate of 8.5 to 1.

In contrast, a flexible exchange rate system allows the supply of and demand for a currency to dictate its exchange rate.

For example, the exchange rate between the US dollar and the Canadian dollar constantly changes throughout the day depending on demand and supply.

Conclusion

Both flexible and fixed exchange rate systems have their strengths and weaknesses. While the former offers stability and predictability, the latter offers autonomy.

In a flexible exchange rate system, the value of a currency changes according to demand and supply. For example, if the supply of a currency increased or demand for a currency decreased, its value would decrease. The flexible exchange rate system helps balance the BOP because its natural flexibility offers the necessary adjustment mechanisms for BOP disequilibrium. For example, a trade deficit causes a deficit in the BOP, which means that there is more supply of domestic currency and less demand for it. Consequently, the value of the domestic currency decreases, thus addressing the imbalance.

In a fixed exchange rate system, on the other hand, the government has more power to manipulate the economy to counterbalance any BOP deficit or surplus. For example, the government can use foreign exchange reserves to reduce a trade deficit. However, it is a delicate process because it comes with several risks.

First, the government can experience huge losses, especially in case of speculative attacks and market pressures, such as persistent trade deficits and surpluses.

Second, the central bank loses autonomy over the domestic monetary policy.

Flexible and fixed exchange rates also differ in terms of inflation, foreign exchange reserves, trade, investment, and macroeconomic fundamentals. The differences are explained in detail below.

FAQs

What is a fixed exchange rate system?

A fixed exchange rate system refers to an exchange rate regime where a currency’s value is anchored to another currency, a basket of currencies, or a commodity at a predetermined rate or within a specified range.

What is a flexible exchange rate system?

A flexible exchange rate system refers to a system where a country’s currency is neither fixed nor pegged to another reference currency, a basket of currencies, or a commodity. Instead, the value of the currency is determined by the law of demand and supply.

What is the main advantage of a fixed exchange rate?

Its major advantage is exchange rate stability and predictability.

What is the main disadvantage of a fixed exchange rate?

A major disadvantage is limited monetary policy autonomy, because the authorities must give priority to maintaining the exchange-rate commitment.

What is the main advantage of a flexible exchange rate?

The main advantage is that it provides greater monetary policy autonomy and flexibility.

What is the main disadvantage of a flexible exchange rate?

This exchange rate regime has the risk of volatility that creates uncertainties for business, trade, and investment.

How does a flexible exchange rate help correct a BOP deficit?

A BOP deficit can cause depreciation in a country’s currency, which makes exports relatively cheaper and more competitive, while imports become more expensive, therefore, correcting the imbalance.

Which exchange rate system requires more foreign exchange reserves to maintain?

A fixed exchange rate requires more foreign exchange reserves to prevent it from depreciation or appreciation.

Why are fixed exchange rates vulnerable to speculative attack?

In case of market pressures, such as persistent trade deficits and surpluses, the government may be forced to use foreign exchange reserves to stabilize the local currency.

Do countries have to choose between a fixed exchange rate and a flexible exchange rate?

No, they usually adopt managed or intermediate exchange-rate regimes, which combine characteristics of both the flexible and fixed exchange rate system.