Foreign exchange reserves.
In plain English
Foreign exchange reserves are assets a central bank holds in currencies other than its own, usually short-term government bonds of major economies, plus gold and reserve positions at the International Monetary Fund. They give a country buying power it can use when it needs foreign currency and cannot easily obtain it: to defend a peg, to slow a disorderly slide, or to keep paying for imports and foreign-currency debt. Reserves are commonly measured against months of import cover or against short-term external debt. Holding them is not free, because the assets are safe and low-yielding while the country may be borrowing at much higher rates.
01Why it matters
Reserve levels are the market's read on whether a country can meet its foreign obligations, so a fast drawdown often comes before a currency crisis that reaches everyday prices and jobs.
02The math, step by step
Say reserves are 60 billion dollars and monthly imports cost 10 billion. That is six months of import cover. Spend 5 billion defending the currency in one month and cover drops to 5.5 months, a decline traders watch closely.
Illustrative example. The amounts here are hypothetical, chosen to show how the math works, not real quoted rates or figures.
03What this is NOT
Reserves are not spare money for schools or roads. They are held for external payments and currency operations, and much of the balance is matched by liabilities elsewhere on the central bank's books. Spending them at home would defeat the reason for holding them.
04Receipts
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Plain-English answers from our glossary. Receipts included. Never advice.
Educational tool. Answers come only from ClearMoneySchool's published glossary and are not advice. Why we never give advice