Elasticity as a Percentage Ratio
Elasticity as a Percentage Ratio
Demand elasticity measures how responsive quantity demanded is to a change in something that influences demand. It compares percentage changes, which lets economists compare markets of very different sizes.
Step-by-step lessons on CIE Intl A Level Economics 2.2.2 formulae for and calculation of price elasticity, income elasticity and cross elasticity of demand. Each one builds up to exam-style questions.