What an index number shows
What an index number shows
An index number expresses the value of a variable relative to a base year. The base year is set equal to 100, so changes over time are easier to read.
Step-by-step lessons covering AQA A Level Economics 2.1.3 Uses of index numbers for A Level Economics. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Start with the core supply-and-demand models before moving on to the more evaluation-heavy macroeconomic policy topics.