Q = 24,000 - 500P Q = 6,000 + 1,000P where P is measured in dollars and Q is the number of T-shirts sold per year. Find the equilibrium price and quantity algebraically.

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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To solve the Equations remember at Equilibrium Quantity Demanded Equals Quantity Supplied

  1. Q = 24,000 - 500P Q = 6,000 + 1,000P

where P is measured in dollars and Q is the number of T-shirts sold per year.

  1. Find the equilibrium price and quantity algebraically.
  2. If tourists decide they do not really like T-shirts that much, which of the following might be the new de-mand curve?

Q = 21,000 - 500P                                  Q = 27,000 - 500P

Find the equilibrium price and quantity after the shift of the demand curve. If, instead, two new stores that sell T-shirts open up in town, which of the following might be the new supply curve?

Q = 4,000 + 1,000P        Q = 9,000 + 1,000P

  1. Find the equilibrium price and quantity after the shift of the supply curve.
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