Exchange rates

Exchange rates determine the value of one currency in terms of another, such as how many US dollars you can buy with one British pound. In a globalised economy, exchange rates affect everything from the price of imported goods to the competitiveness of exports, making them a crucial concept in macroeconomics. For OCR GCSE Economics, you need to understand how exchange rates are determined in foreign exchange markets, the difference between floating and fixed systems, and the impact of currency fluctuations on trade balances and inflation.

Exchange rates matter because they influence a country's balance of payments, economic growth, and living standards. A strong pound makes imports cheaper but exports more expensive, potentially worsening the trade deficit. Conversely, a weak pound boosts exports but raises import costs, which can fuel inflation. Central banks and governments may intervene to stabilise rates, but in a floating system, rates are driven by supply and demand—factors like interest rates, inflation, and speculation. Mastering this topic helps you analyse real-world economic news, such as the impact of Brexit on the pound or how US interest rate changes affect global currencies.

This topic builds on your understanding of international trade and the balance of payments. You'll apply concepts like price elasticity of demand to predict how exchange rate changes affect export and import volumes. In exams, you'll be expected to interpret exchange rate diagrams, calculate currency conversions, and evaluate the pros and cons of different exchange rate systems. A strong grasp of exchange rates is essential for higher-level study in economics and for understanding current affairs.