advanced lesson • 15 min
Dollarization: How Foreign Currency Becomes Part of an Economy
Learning objectives
By the end of this lesson, you should be able to: define dollarization; distinguish official dollarization from de facto or informal dollarization; identify transaction, financial, and real dollarization; explain why informal dollarization may develop; describe major policy trade-offs; and identify why crisis management can be more constrained in a dollarized economy. You should also be able to explain why limited fractional-coin issuance does not necessarily contradict an arrangement in which a foreign currency is the principal legal tender.
Evidence & citations14 sources
Dollarization is the use of a foreign currency by residents of a country, either alongside or instead of the domestic currency; the term can refer to currencies other than the U.S. dollar. (supported)
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Dollarization can be categorized as transaction dollarization, financial dollarization, and real dollarization. (supported)
Informal dollarization commonly develops when inflation, macroeconomic instability, or devaluation risk reduce confidence in the domestic currency and residents seek foreign-currency payment or savings alternatives. (supported)
Full official dollarization eliminates the ability to devalue a national currency and can eliminate currency risk relative to the adopted foreign currency. In return, the country relinquishes independent monetary issuance and policy, and ordinarily forgoes domestic-currency seigniorage revenue. (supported with limitations)
Dollarized economies may face special financial-stability and crisis-management constraints because the domestic authorities cannot freely create the adopted foreign currency; lender-of-last-resort arrangements therefore require particular attention. (supported)
Ecuador announced dollarization on January 9, 2000; the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins and exchanged sucres at a fixed rate, with the conversion process ending in June 2001. (supported)
Dollarization in simple terms
Imagine a country whose people start using a foreign currency because they trust it more than their own currency. They might use it to pay for things, save money, borrow, or set prices. That is dollarization. The foreign currency does not have to be the U.S. dollar, even though the term is often used that way. Dollarization can happen informally while the local currency remains, or officially when a foreign currency becomes legal tender and the country no longer has an independent national currency issuance system in the usual sense.
Evidence & citations6 sources
Dollarization is the use of a foreign currency by residents of a country, either alongside or instead of the domestic currency; the term can refer to currencies other than the U.S. dollar. (supported)
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
What dollarization means
Dollarization is the use of a foreign currency by residents of a country, either alongside or instead of the domestic currency. The term can describe currencies other than the U.S. dollar. The key question is not simply whether foreign notes appear in an economy, but how extensively the foreign currency is used and what legal status it has.
Evidence & citations3 sources
Dollarization is the use of a foreign currency by residents of a country, either alongside or instead of the domestic currency; the term can refer to currencies other than the U.S. dollar. (supported)
Official, informal, and partial dollarization
Official dollarization occurs when a jurisdiction adopts another jurisdiction’s currency as legal tender and does not maintain an independent national currency issuance system as its primary monetary arrangement. In practice, a limited ability to issue fractional coins can coexist with official dollarization, so the definition should not be read as requiring that every coin used in the country be produced abroad. Ecuador illustrates this qualification: the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins.
De facto or informal dollarization is different. The domestic currency remains in place, but residents use foreign currency for some payments, savings, borrowing, or pricing. Informal dollarization can therefore exist without a formal legal-tender replacement.
Evidence & citations5 sources
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Ecuador announced dollarization on January 9, 2000; the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins and exchanged sucres at a fixed rate, with the conversion process ending in June 2001. (supported)
Three ways dollarization can appear
Dollarization can be grouped into three forms:
1. Transaction dollarization: a foreign currency is used for domestic payments. 2. Financial dollarization: foreign-currency assets or liabilities are used, such as savings or borrowing denominated in a foreign currency. 3. Real dollarization: domestic prices, wages, or other transactions become linked or indexed to the exchange rate.
These forms can overlap. For example, a foreign currency may first become attractive as a way to preserve savings, then become more common in payments and pricing.
Evidence & citations2 sources
Dollarization can be categorized as transaction dollarization, financial dollarization, and real dollarization. (supported)
Ecuador’s dollarization
Ecuador announced dollarization on January 9, 2000. The U.S. dollar replaced the sucre as legal tender. The Central Bank of Ecuador exchanged sucres at a fixed rate, and the conversion process ended in June 2001. At the same time, the Central Bank retained authority to issue fractional coins. This example shows why official dollarization is best described in terms of the adopted foreign currency’s legal-tender role and the loss of an independent national currency system, rather than as an absolute rule that no locally issued coin can exist.
Evidence & citations5 sources
Ecuador announced dollarization on January 9, 2000; the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins and exchanged sucres at a fixed rate, with the conversion process ending in June 2001. (supported)
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Key terms
- Legal tender
- currency recognized for settling obligations under the applicable monetary arrangement.
- De facto or informal dollarization
- continued use of a foreign currency while the domestic currency remains in place.
- Transaction dollarization
- foreign currency used for payments.
- Financial dollarization
- foreign-currency assets or liabilities used in the financial system.
- Real dollarization
- domestic prices, wages, or transactions linked to the exchange rate.
- Seigniorage
- revenue ordinarily associated with issuing domestic currency.
Evidence & citations7 sources
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Dollarization can be categorized as transaction dollarization, financial dollarization, and real dollarization. (supported)
Full official dollarization eliminates the ability to devalue a national currency and can eliminate currency risk relative to the adopted foreign currency. In return, the country relinquishes independent monetary issuance and policy, and ordinarily forgoes domestic-currency seigniorage revenue. (supported with limitations)
Trade-offs and financial-stability constraints
Full official dollarization can eliminate the ability to devalue a national currency and can eliminate currency risk relative to the adopted foreign currency. However, the country gives up independent monetary issuance and monetary policy, and ordinarily gives up domestic-currency seigniorage revenue.
Dollarized economies may also face special crisis-management constraints. Domestic authorities cannot freely create the adopted foreign currency, so lender-of-last-resort and other financial-safety-net arrangements require particular attention. These are trade-offs, not automatic predictions that dollarization will produce a particular economic outcome.
Evidence & citations4 sources
Full official dollarization eliminates the ability to devalue a national currency and can eliminate currency risk relative to the adopted foreign currency. In return, the country relinquishes independent monetary issuance and policy, and ordinarily forgoes domestic-currency seigniorage revenue. (supported with limitations)
Dollarized economies may face special financial-stability and crisis-management constraints because the domestic authorities cannot freely create the adopted foreign currency; lender-of-last-resort arrangements therefore require particular attention. (supported)
Common misconceptions
Misconception 1: “Dollarization always means the U.S. dollar is used.” Correction: Dollarization can refer to the use of any foreign currency.
Misconception 2: “If foreign currency is used, the country is officially dollarized.” Correction: Informal dollarization can occur while the domestic currency remains in place. Official dollarization involves the foreign currency’s legal-tender role and a different national currency-issuance arrangement.
Misconception 3: “Official dollarization means no locally issued coins can exist.” Correction: Ecuador’s example shows that a country can adopt a foreign currency as legal tender while retaining authority to issue fractional coins.
Misconception 4: “Dollarization only concerns cash payments.” Correction: It can also involve financial assets and liabilities, as well as prices and wages linked to the exchange rate.
Evidence & citations10 sources
Dollarization is the use of a foreign currency by residents of a country, either alongside or instead of the domestic currency; the term can refer to currencies other than the U.S. dollar. (supported)
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Dollarization can be categorized as transaction dollarization, financial dollarization, and real dollarization. (supported)
Ecuador announced dollarization on January 9, 2000; the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins and exchanged sucres at a fixed rate, with the conversion process ending in June 2001. (supported)
Formative knowledge check
Question: A country keeps its domestic currency, but residents increasingly use a foreign currency for savings and some payments because they are concerned about inflation and devaluation. Is this official dollarization, informal dollarization, or a form of dollarization that describes how the currency is being used?
Answer: It is informal or de facto dollarization. More specifically, the savings use reflects financial dollarization and the payment use reflects transaction dollarization. Official dollarization would require the foreign currency to become legal tender as part of a different national currency-issuance arrangement. Ecuador also shows that limited fractional-coin issuance can coexist with official dollarization.
Evidence & citations9 sources
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Dollarization can be categorized as transaction dollarization, financial dollarization, and real dollarization. (supported)
Informal dollarization commonly develops when inflation, macroeconomic instability, or devaluation risk reduce confidence in the domestic currency and residents seek foreign-currency payment or savings alternatives. (supported)
Ecuador announced dollarization on January 9, 2000; the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins and exchanged sucres at a fixed rate, with the conversion process ending in June 2001. (supported)
Summary
Dollarization means using a foreign currency alongside or instead of a domestic currency. Informal dollarization leaves the domestic currency in place, while official dollarization gives a foreign currency legal-tender status within a different national currency-issuance arrangement. Dollarization may involve payments, financial assets and liabilities, or exchange-rate-linked prices and wages. It may arise when confidence in the domestic currency falls because of inflation, macroeconomic instability, or devaluation risk. Official dollarization can reduce currency risk relative to the adopted currency, but it limits independent monetary policy, ordinarily removes domestic-currency seigniorage, and can complicate lender-of-last-resort support. Ecuador demonstrates that official dollarization can coexist with limited fractional-coin issuance.
Evidence & citations14 sources
Dollarization is the use of a foreign currency by residents of a country, either alongside or instead of the domestic currency; the term can refer to currencies other than the U.S. dollar. (supported)
Official dollarization occurs when a jurisdiction does not issue its own currency and makes another jurisdiction’s currency legal tender; de facto or informal dollarization leaves the domestic currency in place while foreign currency is used in some functions. (supported)
Dollarization can be categorized as transaction dollarization, financial dollarization, and real dollarization. (supported)
Informal dollarization commonly develops when inflation, macroeconomic instability, or devaluation risk reduce confidence in the domestic currency and residents seek foreign-currency payment or savings alternatives. (supported)
Full official dollarization eliminates the ability to devalue a national currency and can eliminate currency risk relative to the adopted foreign currency. In return, the country relinquishes independent monetary issuance and policy, and ordinarily forgoes domestic-currency seigniorage revenue. (supported with limitations)
Dollarized economies may face special financial-stability and crisis-management constraints because the domestic authorities cannot freely create the adopted foreign currency; lender-of-last-resort arrangements therefore require particular attention. (supported)
Ecuador announced dollarization on January 9, 2000; the U.S. dollar replaced the sucre as legal tender, while the Central Bank of Ecuador retained authority to issue fractional coins and exchanged sucres at a fixed rate, with the conversion process ending in June 2001. (supported)
Knowledge check
Test what you just learned.
Complete this short assessment for Dollarization. You will get explanations immediately after grading.
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