Exploring Economics
8th Edition
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:Robert L. Sexton
Chapter5: Markets In Motion And Price Controls
Section: Chapter Questions
Problem 10P
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The demand and supply functions for three (03) goods are given as follows:

Dx = 100-3Px+Py+3Pz

Dy = 80+Px-2Py-Pz

Dz = 120+3Px-Py-4Pz

Sx = -10+Px

Sy = -20+3Py

Sz = -30+2Pz

Determine the equilibrium prices and quantities of all three goods.

The government decides to:

a) impose a 25% Tax on X

b) impose a 5 Rs/unit Tax on Y

c) give a 10% subsidy on good z

Analyze the impact of each of these policies seperately on equilibrium prices and quantities.

Also calculate changes in consumer and producer surpluses, and the amount of revenue earned by the government.

Provide theoretical justifications (using diagrams) of all results obtained.

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