Glossary: Exchange rates
The difference between two currencies; specifically how much one currency is worth relative to each other. For example, if £1 is worth $1.50, converting sterling to US dollars, the exchange rate is 1.5. Converting dollars to sterling at those levels, the exchange rate is 0.66, so $1 is worth 66p. There are a wide variety of factors that influence the exchange rate, such as a country’s interest rates, inflation, and the state of politics and the economy in that country.
An increase in the general level of prices that persists over a period of time. The inflation rate is a measure of the average change over a period, usually 12 months. If inflation is up 4%, this means the price of products and services is 4% higher than a year earlier, requiring we spend and extra 4% to buy the same things we bought 12 months ago and that any savings and investments must generate 4% (after any taxes) to keep pace with inflation. Since 2003, the Bank of England has used the consumer prices index (CPI) as its official measure of inflation (see also retail prices index).