What is inflation?
When inflation exists in the economy the purchasing power of money falls. Every pound (£) you own buys less of a good or service. Think of it like this, if inflation is at an annual rate of 2% then theoretically a £1 bag of HARIBO will cost £1.02 in a years time.
Measurement of Inflation
In the UK there are two measures of inflation, the Consumer Price Index (CPI) and the Retail Price Index (RPI). CPI is the main measure of inflation and takes into account the monthly change in the price of 600 goods and services. Since 2004 the target level of inflation in the U.K set by the Bank of England has been 2% CPI.
Causes of Inflation
Demand-pull inflation:
When a component of aggregate demand increases the AD curve shifts right and is said to 'pull' up the price level thus causing inflation.
Cost-push inflation:
Cost-push inflation arises when the economy experiences an increase in costs of production. For example when the price of labour (wages) increases firms increase prices in order to maintain their profit.
Policies to Control Inflation
The best method of controlling inflation depends on whether the cause of inflation is demand-side (Demand-pull) or supply-side (Cost-push)
Demand-side methods:
Contractionary Fiscal Policy
Tight Monetary Policy
Supply-side methods:
Supply-side Policy