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Understanding Foreign Exchange Rates

Exam code: 2281
Written by: Ashika|Reviewed by: Caroline Carroll|Updated 2 July 2026

An introduction to exchange rates

An introduction to exchange rates

  • An exchange rate is the price of one currency in terms of another e.g. £1 = €1.18

    • International currencies are essentially products that can be bought and sold on the foreign exchange market (forex)

  • Exchange rates are important because they determine how much of a foreign currency you can get when you exchange your own currency — which affects trade, investment, tourism and international finance

Reasons for buying and selling foreign currencies

  • Countries, businesses and individuals buy and sell foreign currencies for many reasons

  • The demand and supply of different currencies in the foreign exchange market is influenced by the following:

1. Trade in goods and services

  • Importers need to buy foreign currencies to pay for goods and services from other countries

  • Exporters, on the other hand, often receive payment in foreign currencies and exchange them into their own currency

2. Speculation

  • Currency traders (speculators) buy and sell currencies to make a profit from changes in exchange rates.

    • For example, if a trader expects the euro to rise in value, they might buy euros now and sell them later at a higher rate

3. Government intervention

  • Governments and central banks may buy or sell their own currency to influence its value

    • This is called exchange rate intervention and is often done to help control inflation, support exports, or maintain economic stability

4. Profit, interest and dividend payments

  • When businesses or investors earn profits, interest, or dividends from other countries, they often need to convert the foreign currency earnings into their own currency

5. Workers’ remittances

  • Many people work in foreign countries and send money home to their families (remittances)

  • These remittances involve converting the worker’s earnings from the currency they are paid in into the home country’s currency

6. Investment in capital goods

  • Firms and governments may invest in machinery, buildings, or infrastructure from other countries

    • To do this, they need to buy the seller’s currency, which increases demand in the foreign exchange market