Price Elasticity of Demand Flashcards
What does price elasticity of demand measure?
How responsive quantity demanded is to changes in price
When measuring price elasticity of demand, the answer will always be what?
Negative
When measuring price elasticity of demand the answer will always be negative, what does this represent?
The inverse relationship between price and demand - if prices rise then demand will fall and vice versa
Give three things that price elasticity of demand is affected by?
Number of substitutes
Time
Whether its a necessity or a luxury ( necessities tend to be price inelastic, luxuries tend to be elastic)
The more consumer substitutes available the more elastic demand will be, why?
Consumers can easily switch products
Give three uses of price elasticity of demand?
Helps firms to determine the optimum price to charge
Helps firms to decide whether to increase or decrease the price
Can be used to calculate the impact of a price change on sales Revenue
Give three limitations of price elasticity of demand?
Values are based on estimates
Information used to calculate price elasticity of demand may become outdated
Other factors may shift the demand curve cancelling out the quantity demanded affect