Answer:income elasticity of demand for Americano coffees = 0.55
Explanation:
Income Elasticitity of demand = percentage change in quantity demanded / Percentage change in income
which can easily be calculated using
Income Elasticitity of demand =(New quantity demanded - old quantity demanded/ old quantity)/(New Income - Old income /old income.
new income = $28
old income=$22
new quantity= 3450
old quantity=3000
Bringing down our formulae
Income Elasticitity of demand =(New quantitry demanded - old quantity demanded/ old quantity)/(New Income - Old income /old income.
= {(3450-3000) /3000} /{(28-22)/22} =(450/3000) /(6/22) = 0.15/0.2727=0.55
income elasticity of demand for Americano coffees = 0.55
Here , we can see that we have a positive income elasticity of demand therefore Americano coffees is a normal good as an increase in income will lead to a rise in demand. Also, the income elasticity of demand for this commodity is less than 1, therefore it is also a necessity good.
