Elasticity - Cross Price, Income, Supply Flashcards
what is cross-price elasticity of demand?
measures how sensitive Q of good A is to P of good B
how to calculate cross-price elasticity of demand?
%priceB
substitues: CPeD is __________
positive
complements: CPeD is _________
negative
what is income elasticity of demand?
measures how sensitive Q of a good is to changes in income
how to calculate income elasticity of demand?
%change income
Normal goods: IeD is ____________
positive
Inferior goods: IeD is ___________
negative
what type of goods cam be income-elastic?
normal
when |IeD| > 1
income-elastic
when |IeD| < 1, but positive
income-inelastic
how to calculate price elasticity of supply?
%change P
what factors affect price elasticity of supply?
1) Availability of Inputs
2) Time
how does availability of inputs affect PeS?
If increased production is expensive, supply curve will be inelastic
If increased production is cheap, supply curve will be elastic
how does time affect PeS?
PeS increases as producers have more time to respond to price changes
Long-run PeS usually higher than short-run