The demand for a commodity is given by QD = 75 – 2P, and the supply by QS = 3 + P. What  are the equilibrium price and quantity? If a tax of $3 per unit is imposed, what will be the price  and quantity after the tax?

Macroeconomics: Private and Public Choice (MindTap Course List)
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ISBN:9781305506756
Author:James D. Gwartney, Richard L. Stroup, Russell S. Sobel, David A. Macpherson
Publisher:James D. Gwartney, Richard L. Stroup, Russell S. Sobel, David A. Macpherson
Chapter4: Demand And Demand: Applications And Extensions
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 The demand for a commodity is given by QD = 75 – 2P, and the supply by QS = 3 + P. What  are the equilibrium price and quantity? If a tax of $3 per unit is imposed, what will be the price  and quantity after the tax?

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Introduction

Taxation results in an increase in equilibrium price and a decline in equilibrium quantity.

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