3.2g - Price Elasticity of Demand Flashcards
Price elasticity of demand definition
The responsiveness of demand for a product following a change in its price
PED formula
% change in quantity demanded / % change in price
What does it mean if the PED = 0?
It is perfectly inelastic - demand does not change at all when price changes
What does it mean if the PED is between 0 and 1?
It is inelastic - the percentage change in demand is smaller than the percentage change in price
What does it mean if the PED = 1?
It is unit elastic - the percentage change in demand is exactly the same as the percentage change in price
What does it mean if the PED is greater than 1?
It is elastic - the percentage change in demand is higher than the percentage change in price
Examples of inelastic products:
- Petrol
- Water
- Cigarettes
Examples of elastic products:
- Heinz soup
- Dairy Milk chocolate bar