Global Reserve Currency

A global reserve currency is a national currency that central banks and other monetary authorities hold as part of their foreign exchange reserves. These holdings generally take the form of assets denominated in that currency, such as government securities, rather than physical cash. Reserve status depends on international acceptance, confidence and usability, not simply on the issuing country's declaration.

Economic strength and confidence in value

Reserve managers need confidence that a currency will preserve value and remain usable during economic stress. The issuing country's economic strength matters, but size alone is insufficient.

• A large, productive economy with substantial international trade creates demand for its currency and provides an economic foundation for its international use.
• Macroeconomic stability, including low and stable inflation and credible monetary and fiscal policies, strengthens confidence in the currency's purchasing power.
• Reliable institutions, protection of property rights and predictable policymaking reduce the risks faced by foreign holders of financial assets.

Accessible markets and a supply of reserve assets

Foreign authorities must be able to acquire, invest and sell the currency easily. Reserve status therefore rests on a financial system that supplies suitable assets, not merely on a widely recognised currency.

• Deep and liquid financial markets allow large transactions without substantial price movements and enable reserves to be mobilised when needed.
• A substantial supply of safe assets, particularly highly creditworthy government securities, gives reserve holders instruments that combine security, liquidity and returns.
• Currency convertibility and relatively open access to financial markets make cross-border investment and withdrawal easier; restrictive capital controls can limit international acceptance.
• Efficient payment, settlement and foreign exchange infrastructure reduces transaction costs and supports dependable access to funds.

International use, networks and strategic trust

Reserve demand is reinforced when businesses, banks and governments already use the currency internationally. These uses support one another and can make an established currency difficult to displace.

• Widespread use in trade invoicing, cross-border payments, borrowing and investment creates practical reasons for monetary authorities to hold the currency.
• Network effects arise because a currency becomes more useful as more participants accept it, lowering the costs of using the same currency as others.
• Confidence in continued access to markets and assets supports reserve demand, while geopolitical tensions and restrictions on access can encourage diversification.