Calculate the equilibrium price and the equilibrium quantity. Show all your work.

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
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Given the following two equations:

                                                            Qd  = 150 – 3P

                                                             Qs = 70 + 2P

  • Calculate the equilibrium price and the equilibrium quantity. Show all your work.
  • Using the above two equations to find the values of Qd, Qs, the market situation (Shortage/Surplus/Equilibrium), and the Value of shortage or surplus if any, at the following prices.

10, 15,20 and 25.

  • If the consumer income increases by 20%, what will happen to the equilibrium price and quantity.
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