The demand and supply functions for three goods are given as follows: Dx=100-3Px+Py+3Pz Dy=80 +Px-2Py-2Pz Dz=120+3Px-Py-4Pz Sx=-10+Px Sy=-20=3Py Sz=-3+2Pz Q1: Determine the equilibrium prices and quantities of all three goods. ·  The government decides to: a.  Impose a 25% tax on X b.  Impose a 5Rs unit Tax on Y c.  Gives a 10% subsidy on good Z · Analyze the impact of each of these three policies separately on equilibrium prices and Quantities. ·  Also calculate changes in consumer and producer surpluses and the amount of revenue earned by the government. Q2: Repeat this exercise when polices (a, b),(b,c) & (a, b,c) are jointly implemented. Which policy choice is best? Why? Q:3 Provide theoretical justification (using diagrams) of all results obtained.

Microeconomics: Principles & Policy
14th Edition
ISBN:9781337794992
Author:William J. Baumol, Alan S. Blinder, John L. Solow
Publisher:William J. Baumol, Alan S. Blinder, John L. Solow
Chapter4: Supply And Demand: An Initial Look
Section: Chapter Questions
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The demand and supply functions for three goods are given as follows:

Dx=100-3Px+Py+3Pz

Dy=80 +Px-2Py-2Pz

Dz=120+3Px-Py-4Pz

Sx=-10+Px

Sy=-20=3Py

Sz=-3+2Pz

Q1: Determine the equilibrium prices and quantities of all three goods.

·  The government decides to:

a.  Impose a 25% tax on X

b.  Impose a 5Rs unit Tax on Y

c.  Gives a 10% subsidy on good Z

· Analyze the impact of each of these three policies separately on equilibrium prices and Quantities.

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

Q2: Repeat this exercise when polices (a, b),(b,c) & (a, b,c) are jointly implemented. Which policy choice is best? Why?

Q:3 Provide theoretical justification (using diagrams) of all results obtained.

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