- Elasticity of Demand: is a measure of how consumers react to a change in price.
- Elastic Demand: demand that is sensitive to a change in price.
- Luxury goods: greater than 1
- Inelastic demand: demand that is not sensitive to a change in price
*few substitutes
* less than 1
* necessity
- Unitary Elastic = 1
- Price elasticity of demand:
old 50
Step 2: change in price new-old 6-4 = .5
old 4
Step 3: P.E.D change in quantity quantity -.2 = -.4 = l .4 l (Inelastic)
price .5
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