What decides how many euros or dollars a pound is worth, and why does a rising or falling pound matter?
Explain what an exchange rate is, how it is determined by the demand for and supply of a currency, the meaning of appreciation and depreciation, and their effects on exports, imports and the economy.
A CCEA GCSE Economics answer on exchange rates, covering what an exchange rate is, how it is set by the demand for and supply of a currency, the meaning of appreciation and depreciation, how to convert between currencies, and the effects of a rising or falling exchange rate on exports, imports and the economy.
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What this dot point is asking
Exchange rates connect a country's economy to the rest of the world, and CCEA expects you to handle them with care. You must explain what an exchange rate is, how it is determined by the demand for and supply of a currency, what appreciation and depreciation mean, how to convert between currencies, and how a rising or falling exchange rate affects exports, imports and the wider economy. This is core Section 5 content with a calculation element and is closely tied to international trade and inflation.
What an exchange rate is
An exchange rate is the price of one currency in terms of another. It tells you how much of one currency you get for another, for example £1 = $1.30 or £1 = 1.15 euros. Exchange rates matter because they set the price of trade: they decide how expensive a country's exports are for foreigners and how expensive imports are for its own consumers.
How exchange rates are determined
In a floating system, the exchange rate is set by the demand for and supply of the currency on the foreign exchange market, just like any other price. The pound is demanded when foreigners want to buy UK exports, invest in the UK, or save in pounds; it is supplied when UK residents want foreign goods, invest abroad, or buy foreign currency.
If the demand for pounds rises (say UK exports become more popular), the pound's value rises. If the supply of pounds rises (say UK residents buy more imports), the pound's value falls. So the same demand-and-supply logic from Section 1 explains the price of a currency.
Appreciation, depreciation and converting currencies
A rise in the value of a currency is an appreciation (the pound buys more foreign currency); a fall is a depreciation (the pound buys less). CCEA also expects you to convert between currencies using a given rate.
The effects of a changing exchange rate
A change in the exchange rate changes the price of trade, and the standard memory aid is SPICED: a Stronger Pound means Imports Cheaper and Exports Dearer. The reverse, a weaker pound, means exports cheaper and imports dearer.
A stronger pound (appreciation) makes UK exports more expensive for foreigners (so export demand may fall) and imports cheaper for UK buyers (so import demand may rise). This can worsen the trade balance, but cheaper imports help to keep inflation down.
A weaker pound (depreciation) makes UK exports cheaper for foreigners (so export demand may rise) and imports dearer for UK buyers (so import demand may fall). This can improve the trade balance and support UK jobs, but dearer imports can add to inflation (cost-push), as imported raw materials and goods cost more.
Why this matters
Exchange rates are the price link between the UK and the world, so they affect the trade balance, inflation and jobs all at once, which is why they appear in so many exam scenarios. They connect to international trade (they set the price of exports and imports), to inflation (a weaker pound raises import prices), and to monetary policy (interest-rate changes move the exchange rate). Examiners reward candidates who can convert currencies correctly, use SPICED accurately, and explain the knock-on effects of a rising or falling pound on the wider economy.
Exam-style practice questions
Practice questions written in the style of CCEA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
CCEA-style4 marksThe exchange rate is £1 = 260 item.Show worked answer →
Use the exchange rate £1 = $1.30 to convert in each direction.
To turn pounds into dollars, multiply by 1.30: 20{,}000 \times 1.30 = \26{,}00026,000. Award marks for this conversion.
To turn dollars into pounds, divide by 1.30: . The shopper needs £200. Award marks for this conversion.
A good answer shows the method clearly: multiply by the rate to go from pounds to dollars, and divide by the rate to go from dollars back to pounds.
CCEA-style6 marksExplain how a fall (depreciation) in the value of the pound affects UK exports and imports.Show worked answer →
A depreciation means the pound is worth less in terms of other currencies, so it buys fewer dollars or euros.
Effect on exports: UK goods become cheaper for foreigners to buy, because their currency now buys more pounds, so UK exports become more price competitive and demand for them tends to rise. Award marks for cheaper exports and rising demand.
Effect on imports: foreign goods become dearer for UK buyers, because each pound buys less foreign currency, so the price of imports rises and demand for them tends to fall. Award marks for dearer imports and falling demand.
A strong answer summarises with a memory aid such as SPICED (a Stronger Pound means Imports Cheaper and Exports Dearer), so a weaker pound means the opposite: cheaper exports and dearer imports, which can help the trade balance but may add to inflation.
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Sources & how we know this
- CCEA GCSE Economics specification (7510) — CCEA (2017)
- CCEA GCSE Economics specification (Standard PDF) — CCEA (2017)