One of Marshall's most important contributions to microeconomics was his introduction of the concept of price elasticity of demand, which examines how price changes affect demand.
What does a ped less than 1 mean?
The range of responses
If quantity demanded changes proportionately, then the value of PED is 1, which is called 'unit elasticity'. PED can also be: Less than one, which means PED is inelastic. Greater than one, which is elastic. Zero (0), which is perfectly inelastic.
Is 0.5 elastic or inelastic?
A good with an elasticity of -2 has elastic demand because quantity falls twice as much as the price increase; an elasticity of -0.5 has inelastic demand because the quantity response is half the price increase.