THE FOLLOWING IS THE DEMAND FUNCTION FOR SUGAR:
Qs = 20 -5Ps + 3Pe + 6Y
Where Qs = demand for sugar (in pounds)
Ps = $5 = price of “sugar” for pounds
Pe = $100 = price of “equal” pounds
Y = $200 = per capital income for a week
Compute and interpret (using a one percent change) the income elasticity.
Demand : Qs = 20 - 5 x 5 + 3 x 100 + 6 x 200 = 1495
Price elasticity = dQs/Ps x Ps/Qs = -5 x 5/1495 = - 0.017
Cross price elasticity = dQs/dPe x Pe/Qs = 3 x 100/1495 = 0.2
Income elasticity = dQs/dY x Y/Qs = 6 x 200/1495 = 0.8
THE FOLLOWING IS THE DEMAND FUNCTION FOR SUGAR: Qs = 20 -5Ps + 3Pe + 6Y...
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