(a) Consider a 2-player zero-sum game with the following payoff matrix, in which a E R is some fixed value. The matrix is given, as usual, from the perspective of the row player. T1 12 13 C1 C2 a 4 C3 5 -1 2 -4 2 -2 1 (i) For what range of values for a will (r₁, C₁) be a pure Nash equilibrium of this game? Justify your answer. (ii) Treating a as a constant, give a linear program to find the optimal mixed

Exploring Economics
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Author:Robert L. Sexton
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Chapter15: Oligopoly And Strategic Behavior
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(a) Consider a 2-player zero-sum game with the following payoff matrix, in which
a E R is some fixed value. The matrix is given, as usual, from the perspective of
the row player.
C1 C2
α
C3
5
T1
1₂-1
2 -4
T3 2 -2 1
(i) For what range of values for a will (r₁, C₁) be a pure Nash equilibrium of this
game? Justify your answer.
(ii) Treating a as a constant, give a linear program to find the optimal mixed
strategy for the row player.
(iii) Suppose that you were given some optimal mixed strategy x for the row
player. Explain how you could then determine an optimal mixed strategy y
for the column player without needing to solve another linear program.
Transcribed Image Text:(a) Consider a 2-player zero-sum game with the following payoff matrix, in which a E R is some fixed value. The matrix is given, as usual, from the perspective of the row player. C1 C2 α C3 5 T1 1₂-1 2 -4 T3 2 -2 1 (i) For what range of values for a will (r₁, C₁) be a pure Nash equilibrium of this game? Justify your answer. (ii) Treating a as a constant, give a linear program to find the optimal mixed strategy for the row player. (iii) Suppose that you were given some optimal mixed strategy x for the row player. Explain how you could then determine an optimal mixed strategy y for the column player without needing to solve another linear program.
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