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Elasticity
Measures sensitivity of demand to price changes. It measures how responsive the quantity demanded of a good is to a change in its price.
Formula
= Percentage change in quantity demanded / percentage change in price
Typically a negative value due to the inverse relationship between price and demand.
When is demand elastic?
Greater than 1 in absolute value.
Consumers are highly sensitive to price changes and demand changes a lot.
When is demand inelastic?
Less than 1.
Indicates low sensitivity and demand barely changes.
If demand is inelastic…
Raise prices
If demand is elastic
Lowering price may increase revenue
What drives elasticity?
Substitutes: the more alternatives, the more elastic.
Brand strength: the stronger the brand the less elastic it will be.
Time horizon: long term = more elastic