1. Consider a market with four identical firms, each of which makes an identical product. The demand function of this product is P = 120 - Q where P is the price and Q is the aggregate output, Q = 9₁ +92 +93 +94. The production costs for firms 1, 2, and 3 are identical and given by C(q) = 20q; for i € {1,2,3,4} where q; is the output of firm i. Assume that each firm chooses her output level to maximize profits given that they act as Cournot competitors. Suppose Firm 3 and Firm 4 merge. Show that the merger paradox exist.

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
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Chapter2: Mathematics For Microeconomics
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1. Consider a market with four identical firms, each of which makes an identical product. The
demand function of this product is P = 120 Q where P is the price and Q is the aggregate
output, Q = 9₁ +92 +93 +94. The production costs for firms 1, 2, and 3 are identical and given
by C(q) = 20q; for i € {1,2,3,4} where q; is the output of firm i. Assume that each firm chooses
her output level to maximize profits given that they act as Cournot competitors. Suppose Firm 3
and Firm 4 merge. Show that the merger paradox exist.
Transcribed Image Text:1. Consider a market with four identical firms, each of which makes an identical product. The demand function of this product is P = 120 Q where P is the price and Q is the aggregate output, Q = 9₁ +92 +93 +94. The production costs for firms 1, 2, and 3 are identical and given by C(q) = 20q; for i € {1,2,3,4} where q; is the output of firm i. Assume that each firm chooses her output level to maximize profits given that they act as Cournot competitors. Suppose Firm 3 and Firm 4 merge. Show that the merger paradox exist.
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