QUESTION 1
The market demand and supply equations for a product are: QD = 25 - 3P and QS = 10 + 2P, where Q is quantity and P is price.
(a) What are the equilibrium price and quantity for this product?
(b) Formulate the inverse demand function.
(c) If income rises, leading to new demand of QD = 40 - 3P, find new P* and Q*
(d) Now, suppose the government enacts legislation that imposes a price ceiling equivalent to
the original equilibrium price. What is the result of this legislation?
(e) Determine the quantity demanded, the quantity supplied, and the magnitude of the
surplus if a price floor of $9 is imposed in this market.
(f) Determine the quantity demanded, the quantity supplied, and the magnitude of the
shortage if a price ceiling of $1.5 is imposed in this market. Also, determine the full economic price paid by consumers.
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