1.2.5 income elasticity of demand Flashcards
what does YED stand for?
income elasticity of demand
what is income elasticity of demand?
measures the responsiveness of demand to a change in income
what does income elastic mean?
means that the change in demand is greater than the change in income
what does income inelastic mean?
means that the change in demand is less than the change in income
what is the relationship between price and demand?
they always move in the opposite direction
what is a normal good?
when demand for a product increases, when income increases
normal goods will always have a _______ income elasticity of demand?
normal goods will always have a positive income elasticity of demand?
what is an inferior good?
when demand for a product decreases, when income increases
inferior goods will always have a _______ income elasticity of demand?
inferior goods will always have a negative income elasticity of demand
what is the formula for YED?
% change in quantity demanded
____________________________
% change in income
what does YED<1 mean?
YED<1 = income inelastic
what does YED>1 mean?
YED>1 = income elastic
is -1.4 income elastic or inelastic?
income inelastic
is 0.7 income elastic or inelastic?
income elastic
what does +,- show?
the positive and negative tells us what kind of good it is
negative= inferior
positive= normal