Price Elasticity of Demand Flashcards
What is Elasticity?
Measures responsiveness of demand to a change in a relevant variable - such as price or income.
Definition of Price Elasticity of Demand
Measures extent to which quantity of product demanded changes in response to change in price.
Price Elasticity of Demand (PED) =
% Change in Price
Price elastic more than 1 means
Change in demand is more than change in price.
Price inelastic less than 1 means
Change in demand is less than change in price.
Unitary price elasticity being exactly 1 means
Change in demand = Change in price
if PED > 1 (price elastic) then
Change in price will cause larger change in demand
- Overall revenues increase with price cut
- Overall revenues fall with price increase
5 factors influencing PED:
1) Brand strength
2) Necessity
3) Habit
4) Availability of substitutes
5) Time
1) Brand strength on PED
Products with strong brand loyalty and reputation tend to be price inelastic.
2) Necessity on PED
More necessary a product, more demand tends to be inelastic.
3) Habit on PED
Products that are demanded and consumed as matter of habit tend to be price inelastic.
4) Availability of substitutes on PED
Demand for products that have lots of alternatives tends to be price elastic.
5) Time on PED
Price changes tend to have less impact on demand than over longer periods.