Problem 3. Consider the following two-player game. Player 1 (the row player) has three strategies {U,F,D}, and Player 2 (the column player) has four strategies {L, M, N, R}. In each cell, the first number is the pay-off of Player 1, and the second is that of Player 2. There is an unknown x in the table. Consider pure strategies only. UFD D L (0, 3) (6,0) (3, 1) M (1,0) (5, 1) (4,2) N (2,5) (x, 2) (1, 1) R (4,2) (5, 1) (1,3)

Managerial Economics: A Problem Solving Approach
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Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
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Chapter15: Strategic Games
Section: Chapter Questions
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Problem 3.
Consider the following two-player game. Player 1 (the row player) has three strategies {U, F, D},
and Player 2 (the column player) has four strategies {L, M, N, R}. In each cell, the first number is
the pay-off of Player 1, and the second is that of Player 2. There is an unknown x in the table.
Consider pure strategies only.
U
F
D
L
(0, 3)
(6,0)
(3, 1)
M
(1,0)
(5, 1)
(4,2)
N
(2,5)
(x, 2)
(1, 1)
R
(4,2)
(5, 1)
(1, 3)
(1) Find a number x such that {F, N} is the unique Nash equilibrium.
(2) Find a number x such that the game has more than one Nash equilibria. What
are these Nash equilibria in this case?
(3) Is it possible to find a number x such that the game has no Nash equilibrium?
For each of your answers above, an explanation needs to be provided.
Transcribed Image Text:Problem 3. Consider the following two-player game. Player 1 (the row player) has three strategies {U, F, D}, and Player 2 (the column player) has four strategies {L, M, N, R}. In each cell, the first number is the pay-off of Player 1, and the second is that of Player 2. There is an unknown x in the table. Consider pure strategies only. U F D L (0, 3) (6,0) (3, 1) M (1,0) (5, 1) (4,2) N (2,5) (x, 2) (1, 1) R (4,2) (5, 1) (1, 3) (1) Find a number x such that {F, N} is the unique Nash equilibrium. (2) Find a number x such that the game has more than one Nash equilibria. What are these Nash equilibria in this case? (3) Is it possible to find a number x such that the game has no Nash equilibrium? For each of your answers above, an explanation needs to be provided.
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