The income elasticity of demand for bagels is 0.48. Bagels is a normal good. Income elasticity of demand for donuts is -0.31. Donuts is an inferior goods.
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What is income elasticity of demand?</h3>
Income elasticity of demand measures how the quantity demanded of a good changes when there is a change in income. Inferior goods have a negative income elasticity. Normal goods have a positive income elasticity.
Income elasticity of demand = percentage change in quantity demanded / percentage change in income
Income elasticity of demand for bagels:
percentage change in quantity demanded = (10 /6) - 1 = 0.667 = 66.7%
percentage change in income = ($6000 / $2500) - 1 = 1.4 = 140%
Income elasticity of demand = 66.7 / 140 = 0.48
Income elasticity of demand for donuts:
percentage change in quantity demanded = (8/14) - 1 = -0.429 = 42.9%
percentage change in income = ($6000 / $2500) - 1 = 1.4 = 140%
Income elasticity of demand = -42.9/ 140 = -0.31
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