Price Elasticity of Demand Flashcards
- What is* elasticity?*****
Elasticity is the responsiveness of X to a change in another variable.
What is PED?
Price elasticity of demand measures the responsiveness of **demand after a change in the goods own price.**
What if the PED=0?
Its perfectly inelastic -demand does not change when prices changes
- the demand curve is vertical
What if the PED IS 0-1?
% change in demand is less than the % change in its own price , then its demand is inelastic as
What if the PED is equal to 1?
% change in demand is the same as the % change of its price. The demand is called unit elastic. A 15% rise percentage in price would lead to 15% contraction in demand.
WHAT if the PED IS GREATER THAN 1(PED > 1) ?
The demand response more than proportionately to a change in price i.e demand is elastic. e.g 20% increase in price leads to 50% drop in demand
What are the factors that determine the PED of a product?
- Number of close substitutes available for consumers
-Price of the product in relations to total income
-Cost of substituting between different productss
-degree of luxury
-standard assumption is that necessities have a lower price elasticity of demand whereas luxury are optional spend.