Next, consider the market equilibrium after the merger. Note that only firms m, 3, and 4 are still operating in the market. e. f. h. Write down the profit maximization problems for firms m, 3, and 4 respectively. Write down the first-order conditions for firms m, 3, and 4 respectively. Solve for the asymmetric Nash equilibrium in this post- merger Cournot game. In particular, write down firm m's output qpost, firms 3 and 4's symmetric output quost = '3ost = quos post and total 1 I'm output Qost Calculate the post-merger total welfare Wpre

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter15: Imperfect Competition
Section: Chapter Questions
Problem 15.6P
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Please help me understand part d to part h

Q1. Horizontal Mergers with synergies
The market inverse demand is given by P(Q) = 170 - Q. Initially, four
firms, 1, 2, 3, and 4, have the symmetric constant marginal cost c = 20
and compete à la Cournot. There is no fixed cost. We will explore the
impact of a merger between firms 1 and 2. The newly merged firm is
called m. Following the merger, firm m's constant marginal cost reduces
to Cm 20 z with 0 < x < 20 representing the synergy resulting from
the merger.
First, consider the market equilibrium prior to the merger.
a.
b.
C.
d.
e.
Next, consider the market equilibrium after the merger. Note that only
firms m, 3, and 4 are still operating in the market.
f.
g.
Write down the profit maximization for firm i, i = 1, 2, 3, 4.
Write down the first-order condition for firm i.
h.
Solve for the symmetric Nash equilibrium in this Cournot
game. In particular, write down each firm's output qre, price pre
total output Qre, and each firm's profit pre in equilibrium.
Calculate the pre-merger total welfare Wpre
Write down the profit maximization problems for firms
m, 3, and 4 respectively.
Write down the first-order conditions for firms m, 3, and
4 respectively.
Solve for the asymmetric Nash equilibrium in this post-
merger Cournot game. In particular, write down firm m's output
qnost, firms 3 and 4's symmetric output post = dost = dost, and total
output post
Calculate the post-merger total welfare Wpre.
Transcribed Image Text:Q1. Horizontal Mergers with synergies The market inverse demand is given by P(Q) = 170 - Q. Initially, four firms, 1, 2, 3, and 4, have the symmetric constant marginal cost c = 20 and compete à la Cournot. There is no fixed cost. We will explore the impact of a merger between firms 1 and 2. The newly merged firm is called m. Following the merger, firm m's constant marginal cost reduces to Cm 20 z with 0 < x < 20 representing the synergy resulting from the merger. First, consider the market equilibrium prior to the merger. a. b. C. d. e. Next, consider the market equilibrium after the merger. Note that only firms m, 3, and 4 are still operating in the market. f. g. Write down the profit maximization for firm i, i = 1, 2, 3, 4. Write down the first-order condition for firm i. h. Solve for the symmetric Nash equilibrium in this Cournot game. In particular, write down each firm's output qre, price pre total output Qre, and each firm's profit pre in equilibrium. Calculate the pre-merger total welfare Wpre Write down the profit maximization problems for firms m, 3, and 4 respectively. Write down the first-order conditions for firms m, 3, and 4 respectively. Solve for the asymmetric Nash equilibrium in this post- merger Cournot game. In particular, write down firm m's output qnost, firms 3 and 4's symmetric output post = dost = dost, and total output post Calculate the post-merger total welfare Wpre.
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