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Charl H asked in Social ScienceEconomics · 9 years ago

What is the effect of a change in income?

Average income increases from R20, 000 per annum to R22, 000 per annum. Quantity demanded per year increases 5000 to 6000 units. Which of the following is correct?

a)Demand is price inelastic

b)The good is inferior

c)Income elasticity is -2

d)The product is normal

2 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    read the Q, and figure out which applies:

    a)Demand is price inelastic = Quantity demanded does not respond to price

    b)The good is inferior = Quantity demanded decreases when income increases

    c)Income elasticity is -2 = Quantity demanded decreases twice as fast as income

    d)The product is normal = Quantity demanded increases when income increases

  • 9 years ago

    * 1st. you calculate the income elasticity of demand dq/dy . y/q . where, dq change in quantity demanded , dy is the change in income, y original income and q original demand. .

    if the value is < 1 demand is inelastic. if the value is > 1 elastic.

    * a.you have mentioned about the income changes and no reference to price change.

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