1.2.4 PED Flashcards
What does PED stand for
Price elasticity of demand
What is PED
Is a measure of how responsive demand is to a change in price
What type of relationship is there between price and demand
Inverse
If price increases by 10% and demand falls by 5% is it inelastic or elastic and why
Inelastic as the fall in demand is less than the fall I price
If price increases by 10% and demand falls by 13% is it elastic or inelastic and why
Elastic as the all in demand is greater than the fall in price
What is price elastic demand
That a change in price will lead to a more than proportional change in demand
Eg demand is more sensitive to price changes
What is price inelastic demand
A change in price will lead to a less than proportional change in demand
How do you calculate price elasticity
%change in quantity demanded / %change in price
What is inflation
General rose in price above wages
If PED is between 0 and -1 then demand is
Price inelastic
If PES is less than -1 then demand is
Price elastic
Factors that affect the value of PED coefficient include
- Availability of substitutes
- the price of competitor goods
- time
- branding
- income
Explain how the availability will effect the value of PED coefficient
The closer the substitute and the more that are available the huger the price elasticity of demand
Explain how the price of competitor goods will effect the value of PED coefficient
If the price of goods in competition with a product increases this will effect demand and price elasticity if demand
Explain how time will effect the value of PED coefficient
The longer the time period the higher the price elasticity of demand. Given more time other firms have the ability to produce similar products and customers have more change if adapting their buying habits