Suppose you are given the following information:  Qs = 100 + 3P Qd = 400 – 2P  where Qs is the quantity supplied, Qd is the quantity demanded and P is price. a. From this information compute equilibrium price and quantity. b. Now suppose that a tax is placed on buyers so that Q d = 400 – (2P + T) where T is taxes. If T = 15, solve for the new equilibrium price and quantity. (Note: You are solving for the equilibrium price for sellers and buyers).  c. The income elasticity of Abigail’s demand for CDs is 0,75. For Abigail Cds are a normal  good or an inferior good? Explain your answer.

Managerial Economics: A Problem Solving Approach
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Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
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Chapter8: Understanding Markets And Industry Changes
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Suppose you are given the following information:
 Qs = 100 + 3P

Qd = 400 – 2P

 where Qs is the quantity supplied,

Qd is the quantity demanded and P is price.


a. From this information compute equilibrium price and quantity.


b. Now suppose that a tax is placed on buyers so that Q d = 400 – (2P + T) where T is taxes. If T = 15, solve for the new equilibrium price and quantity. (Note: You are solving for the equilibrium price for sellers and buyers). 


c. The income elasticity of Abigail’s demand for CDs is 0,75. For Abigail Cds are a normal  good or an inferior good? Explain your answer. 


d. Years ago, Ricky paid $500 for CDs to put together a collection. Today, he sold his
CDs for $200. How does this sale affect current GDP

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