Answer:
Necessity Goods : Income Inelastic (< 1)
Luxury Goods : Income Elasticity ( > 1)
Step-by-step explanation:
Elasticity is responsiveness of demand change to price change . Formula : - % change in demand / % change income
Normal goods have positive income elasticity, i.e. demand increase with income rise & decrease with income rise .
Necessity good's demand responds less to income change & is income inelastic ( < 1 ), % change in demand < % change in price .
Eg : Medicines
Luxury good's demand is more responsive to income change & is income elastic ( > 1) , % change in demand > % change in price .
Eg : Luxury Cars