Session 12 - PED Flashcards
What does PED stand for
Price elasticity of demand
How is PED defined
The measure of responsiveness of demand to a change price
What is a product if its PED is a whole number e.g -1 or -1.5
Elastic
What is a product if its PED is a decimal number e.g -0.1
Inelastic
What does it mean if a product is elastic
Change in price of product leads to significant changes in demand for it
What does it mean if a product is inelastic
A change in price causes a smaller % change in demand
What is an example of an elastic product
Tesco bread - many substitutes
What is an example of an inelastic product
Petrol - few substitutes
What is the formula for calculating PED
% change in quantity demanded / % change in price
What is the formula for calculating % change
(New - old) / old x 100
What happens if PED is inelastic and a firm raises its prices
Revenue increases
What happens if PED is -1.5 and the firm raises its price by 4%
Revenue decreases