
Currency boards are a type of monetary system used by some countries to stabilize their currency.
They work by pegging the local currency to a foreign currency, usually the US dollar, at a fixed exchange rate.
This is done through a currency board, which is a government agency responsible for managing the country's currency.
In Hong Kong, for example, the currency board is responsible for maintaining the stability of the Hong Kong dollar.
Hong Kong's currency board system has been in place since 1983 and has been successful in maintaining low inflation and economic stability.
By pegging the Hong Kong dollar to the US dollar, the currency board has helped to attract foreign investment and promote economic growth.
The currency board also regulates the money supply in Hong Kong by limiting the amount of currency that can be issued.
What is a Currency Board?
A currency board is a unique financial institution that plays a crucial role in a country's economy. It backs the domestic currency 100% with a foreign reserve currency, maintaining a fixed exchange rate.
This means that the value of the domestic currency is directly tied to the value of the foreign currency it's pegged to. A currency board lacks discretionary monetary policy tools, which limits its ability to control the money supply and interest rates.
A key characteristic of a currency board is that it cannot act as a lender of last resort, meaning it's not equipped to provide emergency loans to banks or other financial institutions in times of crisis.
Types of Currency Boards
There are different types of currency boards, each with its own characteristics.
One type of currency board operates with capital controls, which can be useful in limiting capital flows during a transitional phase, as seen in Estonia and the ECCB.
Capital controls can also be used to limit capital flows when financial liberalization is incomplete or when CBAs are introduced in an economy with unsound banks.
In some cases, capital controls can add to the problems of operating a CBA, as seen in Estonia's capital inflows after the initial stabilization.
The Hong Kong currency board is an example of a CBA that earns full seigniorage from its foreign exchange reserves, which it uses to increase its foreign exchange reserves.
In other CBAs, earnings from foreign exchange reserves are not separated from profits generated from other activities, and are not subject to a separate profit transfer rule.
Pros and Cons
Currency boards have both advantages and disadvantages. One of the main benefits is that they eliminate questions of currency stability. However, this comes with the drawback of limiting a country's ability to set monetary policy according to other domestic considerations.
A fixed exchange rate will also fix a country's terms of trade, regardless of economic differences with its trading partners. This can be a challenge for countries with varying economic conditions.
Small, open economies often find independent monetary policy difficult to sustain, making currency boards a suitable option. They can also provide a credible commitment to low inflation.

Here are some key points to consider:
Currency boards can be a viable option for countries with small, open economies. However, they require careful consideration of the trade-offs involved.
Examples of Currency Boards
Hong Kong and Bulgaria are two countries that currently operate a currency board.
More than 70 countries have had currency boards in the past.
Estonia had a currency board fixed to the Deutsche Mark from 1992 to 1999, and later fixed to the Euro at par until January 2011.
Argentina abandoned its currency board in January 2002 after a severe recession.
The British Overseas Territories of Gibraltar, the Falkland Islands, and St. Helena continue to operate currency boards, backing their locally printed currency notes with sterling reserves.
Argentina's System Advantages and Disadvantages
Argentina's currency board system had initial success in curbing inflation and stimulating growth. This was a significant advantage, especially in the short term.
However, the system also had some major drawbacks. One of the biggest disadvantages was the loss of monetary policy independence, which meant that the government had limited control over its own economy.

Argentina's experience also showed that a currency board can be vulnerable to external shocks, making it difficult for the country to respond to economic changes. This lack of flexibility can lead to significant economic problems.
The eventual overvaluation of the peso led to an economic crisis in Argentina, highlighting the potential pitfalls of adopting a currency board. This is a crucial lesson for countries considering such a system.
Recent Examples
Argentina's experience with its currency board-like system is a great example of what can go wrong. The country adopted the system in 1991 to combat hyperinflation and stimulate economic growth, and it was initially successful.
However, the system eventually led to economic decline and a crisis due to factors like the overvaluation of the Argentinian peso and external shocks, such as the Tequila Crisis. This highlights the importance of understanding the limitations and potential pitfalls of currency boards.
In recent history, more than 70 countries have had currency boards, with some countries like Hong Kong and Bulgaria still operating them today. Estonia had a currency board fixed to the Deutsche Mark from 1992 to 1999, when it switched to fixing to the Euro at par.

The British Overseas Territories of Gibraltar, the Falkland Islands, and St. Helena continue to operate currency boards, backing their locally printed currency notes with sterling reserves. This is a testament to the enduring appeal of currency boards in certain contexts.
Here are some key examples of currency boards in recent history:
- Argentina (1991-2002): Adopted a currency board-like system to combat hyperinflation and stimulate economic growth, but it eventually led to economic decline and a crisis.
- Hong Kong and Bulgaria: Still operate currency boards today.
- Estonia (1992-1999): Had a currency board fixed to the Deutsche Mark, and then switched to fixing to the Euro at par.
- Gibraltar, Falkland Islands, and St. Helena: Operate currency boards, backing their locally printed currency notes with sterling reserves.
Argentina's experience serves as a cautionary tale about the importance of understanding the limitations and potential pitfalls of currency boards. It's a reminder that these systems are not foolproof and can be vulnerable to external shocks and internal weaknesses.
How Currency Boards Function
A Currency Board functions similarly to a gold standard, where reserve money issue is determined by rules rather than central bank policy discretion. This means changes in money demand are accommodated by changes in international reserves, rather than central bank net domestic assets.
Interest rates in a Currency Board are mostly determined by local market adjustments to monetary conditions in the reserve currency country. This can lead to a risk premium in domestic interest rates due to the possibility of the arrangement being changed or commercial banks unable to ensure deposit convertibility.
In economies with open capital accounts, capital flows can reduce monetary disequilibria and facilitate local interest rates approximating those in the reserve currency country.
How Currency Works

A currency board works by backing the domestic currency 100% with a foreign reserve currency, maintaining a fixed exchange rate. This means that the value of the domestic currency is directly tied to the value of the foreign reserve currency.
In a currency board system, interest rates are determined mostly by local market adjustments to monetary conditions prevailing in the reserve currency country. This can lead to a risk premium being built into domestic interest rates, as occurred in Argentina in early 1995.
Capital flows tend to reduce monetary disequilibria and facilitate the approximation of local interest rates to those in the reserve currency country. This is especially true in economies with open capital accounts, where capital flows can occur freely.
The currency board earns seigniorage in the form of interest income on foreign asset holdings, albeit subject to fluctuations in the value of foreign assets and gold. In Hong Kong, the currency board is allowed to retain full seigniorage, which it uses to increase its foreign exchange reserves.
Currency boards lack discretionary monetary policy tools and cannot act as a lender of last resort. This means that they must rely on price mechanisms and limiting the domestic money supply to control inflation.
How Arrangements Function

A currency board arrangement functions similarly to a gold standard, where reserve money issue is tied to a limited margin for central bank policy discretion. This means that changes in money demand are accommodated by changes in international reserves, rather than by changes in the central bank's net domestic assets.
Interest rates in a CBA are mostly or totally determined by local market adjustments to monetary conditions prevailing in the reserve currency country. This can lead to a risk premium being built into domestic interest rates due to the possibility of the arrangement being changed or commercial banks being unable to ensure deposit convertibility.
In economies with open capital accounts, capital flows tend to reduce monetary disequilibria and facilitate the approximation of local interest rates to those in the reserve currency country. This is because free capital mobility stimulates the containment of exchange rate risk, which facilitates arbitrage.
Capital mobility can, however, add to the problems of operating a CBA, as seen in the case of Estonia's persistent capital inflows after the initial stabilization. Some CBAs, including Estonia's and the ECCB's, have operated or continue to operate with capital controls.
A currency board earns seigniorage in the form of interest income on foreign asset holdings, but this is subject to fluctuations in the value of foreign assets and gold.
Flaws in Implementation

One of the main flaws in implementing a currency board is that it can lead to a loss of monetary policy independence. The currency board's rules-based system can limit the government's ability to respond to economic shocks.
The Hong Kong dollar's currency board system, for example, has been criticized for being too rigid and unable to respond to changes in the economy. This has led to accusations that the system is more geared towards maintaining the currency's peg to the US dollar than supporting the local economy.
The currency board's requirement to hold 100% of its foreign exchange reserves in reserve currencies can also limit the government's ability to implement expansionary monetary policies. This is because the government cannot use its reserves to finance domestic spending or reduce interest rates.
The Argentine currency board, which was in place from 1991 to 2002, is a prime example of how a currency board can lead to economic instability. The board's rigid rules and lack of flexibility meant that it was unable to respond to the country's economic crisis, leading to a severe economic downturn.
Conclusion and Key Takeaways

As we wrap up our exploration of currency boards, it's clear that they're a unique and complex system. A currency board is essentially a monetary authority that issues currency and regulates the money supply, but it's not a central bank.
One key takeaway from our discussion is that currency boards are often used in countries with fixed exchange rates, such as Hong Kong. This is because they can help maintain a stable exchange rate by limiting the money supply.
The Bottom Line
In the end, it's not about which system is better, but rather which one is more credible. The credibility of a monetary authority is crucial for its success, as investors need to trust the system to function effectively.
Investors losing faith in the system is a clear indicator of failure, regardless of whether it's a currency board, a central bank, or a combination of both.
The credibility of a monetary authority can be a subtle but essential element in its success.
Chapter Summaries

The chapter summaries provide a detailed overview of the key concepts and Argentina's experience with a currency board-like system.
A currency board operates by backing the domestic currency 100% with a foreign reserve currency, maintaining a fixed exchange rate.
This approach contrasts with a typical central bank, which has more flexibility in monetary policy tools.
In the case of Argentina, the currency board-like system was adopted in 1991 following periods of hyperinflation and recession.
The system initially succeeded in curbing inflation and stimulating economic growth.
However, the system eventually failed due to the overvaluation of the Argentinian peso and subsequent economic crisis.
Deviations from orthodox currency board rules and external shocks, such as the Tequila Crisis, also contributed to the system's failure.
A currency board's inability to act as a lender of last resort is another key limitation of this system.
Frequently Asked Questions
What is the difference between currency board and dollarization?
The key difference between currency board and dollarization is that currency board countries still generate revenue from seigniorage, whereas dollarizing countries give up this revenue. However, dollarization offers lower interest rates on foreign borrowing due to reduced currency risk.
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