What is elasticity of demand ?
How responsive demand is to a price change
What is the equation for elasticity of demand ?
%change in demand / %change in price
What does a value greater than one mean in PED ?
Change in demand is greater than the change in price ( elastic )
What does the value = 1 mean in PED ?
Demand changes in line with price
( unit elastic )
What does the value less than 1 mean in PED ?
Change in demand is less than price ( inelastic )