Elasticity Flashcards
What is elasticity?
It examines how responsive demand (or supply) is to a change in another variable. Eg. Price, Income
Price Elasticity of Demand (PED)
Measures the responsiveness of DEMAND to a change in PRICE
Price Elasticity of Supply (PES)
Measures responsiveness of SUPPLY to a change in PRICE
Cross Elasticity of Demand (XED)
Measures responsiveness of DEMAND of GOOD A to a change in PRICE of GOOD B
Income Elasticity of Demand (YED)
Measures responsiveness of DEMAND to a change in INCOME
Price Elasticity of Demand EQUATION
Inelastic Demand GRAPH
Characteristics of goods that have inelastic demand.
- No subsitutes for the good. EG. Gold, Diamonds, Petrol, Sugar
- Goods which are necessities
- Addictive
Elastic Demand GRAPH
What is meant when Demand is Price Elastic
If a change in price causes a bigger % change in demand
When is Demand said to be Price Elastic?
If a change in price causes a bigger % change in demand
Cross Elasticity of Demand (XED)
XED = % change in Quantity Demanded / % change in price of other good.
Income Elasticity of Demand (YED)
YED = % change in Q.D / % change in income
Price Elasticity of Supply (PES)
PES = % change in Q.S / % change in Price
What would happen if the price for chocolate increased?
Demand would be PRICE INELASTIC because there are no close substitutes
What would happen if a particular brand of choclate increased its price??
Consumers would switch to another brand of chocolate, demand is more is more ELASTIC
Price Discrimination definition
charging a different price for different groups of people for the same good.
EG. Student discounts