Income Elasticity of Demand (YED) Flashcards
What is YED?
it measures the responsiveness of demand following a change in income
What are inferior goods?
as income increases, demand for some goods (inferior goods) decreases - consumers choose alternative products which are perceived to be of higher quality
What are normal goods?
as income increases, demand will increase
Equation for YED
percentage change in quantity demanded/percentage change in income
What kind of answer will a normal good give?
positive answers
What kind of answer will an inferior good give?
negative answers
Which sub-categories are normal goods put into?
basic goods and luxuries
What income elasticity will basic goods have?
between 0 and 1
What income elasticity will luxury goods have?
more than 1