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(#15 in Book) Consider the market for Pop Rocks depicted in the diagram below. P

ID: 1116724 • Letter: #

Question

(#15 in Book) Consider the market for Pop Rocks depicted in the diagram below. Price (s/package) $1.00 0.10 -MC 100 Quantity of Pop Rocks (thousands of packages) If the Pop Rock industry were competitive, what would the competitive price and quantity be? If the Pop Rock industry were competitive, what would be the consumer and producer surpluses, respectively? Suppose that gangland figure Tommy Vercetti monopolizes the Pop Rock market. What price and quantity will he choose to maximize profit? Calculate the consumer and producer surplus of this Pop Rock monopoly. Compare your answers to (d) and (b). How big is the deadweight loss of monopoly? a. b. c. d. e.

Explanation / Answer

a) In perfect competition price is equal to Marginal Cost . So P= .10.

b) CS = 1/2*(1-.10)*100 = 45

PS = 0

c) Monopoly will produce at point where Marginal Cost is equal to Marginal revenue .

Equation for demand

P-0 =( 0-1)/(100-0)* Q-100

100P = Q = P =.01Q

TR =.01Q2

MR = .02Q

At equilibirum

.02Q =.10 , Q = 50

P= .O1* 50 = .5

CS = 1/2 *( 1-.5)*50 = 12.5

PS = 1/2 * (.5)* 50 =12.5

e) Dead weight loss = 45- 25 = 20