Assume demand and supply are given by Qd = 50 - P and Qs = 1/2P - 10
a) What are the equilibrium quantity and price in this market?
b) Find out the quantity demanded, the quantity supplied, and the magnitude of surplus if a price floor of $42 is imposed in this market.
c) Find out the quantity demanded, the quantity supplied, and the magnitude of the shortage if a price ceiling of $30 is imposed in this market. Also determine the full economic price paid by consumers.