Elasticity Problems: Show your work includung units, if any
5. As incomes have risen by 20%, the quantity demanded of 60-inch TVs has risen by 30%. What is the income elasticity of demand? What kind of good is this?
6. As incomes have fallen by 10%, the quantity demanded of generic corn flakes has risen by 20%. What is the income elasticity of demand? What kind of good is this?
7. DishTV has lowered its prices by 10% and the subscription base for DirecTV fell 15%. What is the cross price elasticity of demand for DirecTV? How are these services related?
(5) Income elasticity=%change in quantity demanded/%change in income
So income elasticity of 60 inch Tv =30/20=1.5. Since income elasticity is positive so 60 inch TV is a normal good.
(6) Income elasticity of generic corn flakes= 20/-10=-2. Since income elasticity is negative so generic corn flakes is an inferior good.
(7) cross price elasticity of directv = %change in demand of direcTV/%change in price of DishTV=-15/-10=1.5 . Since cross price elasticity is positive so DirecTV and DishTV are substitutes.
Get Answers For Free
Most questions answered within 1 hours.