Abstract
Consider the following sequential game (Fig. 11.1).
Player 1 has the strategies {No entry, Entry}, while player 2 has the strategies {Fight, Concede}.
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1.
(No entry, Fight) is a Nash equilibrium.
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2.
(No entry, Concede) is a Nash equilibrium.
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3.
(Entry, Fight) is a Nash equilibrium.
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4.
(Entry, Concede) is a Nash equilibrium.
Consider the following game in normal form (Table 11.1).
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1.
Strategy U is dominant for player 1.
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2.
\((D,R)\) is a Nash equilibrium in this game.
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3.
\((U,L)\) is a Nash equilibrium in this game.
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4.
\((D,R)\) is an equilibrium in dominant strategies in this game.
Consider the following game in extensive form (Fig. 11.2).
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1.
The strategy sets of the players are \(S_{1}=\{Y,X\}\) for player 1 and \(S_{2}=\{O,U\}\) for player 2.
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2.
In order to maximize his utility, player 2 will never choose O.
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3.
This is a simultaneous-move game.
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4.
The following game in normal form (Table 11.2) has the same Nash equilibrium/equilibria as the former extensive-form game.
Notes
- 1.
Samuel Bowles (2003). Microeconomics: Behavior, Institutions andEvolution, Princeton: Princeton University Press, p. 23.
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Kolmar, M., Hoffmann, M. (2018). Principles of Game Theory. In: Workbook for Principles of Microeconomics . Springer Texts in Business and Economics. Springer, Cham. https://doi.org/10.1007/978-3-319-62662-8_11
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DOI: https://doi.org/10.1007/978-3-319-62662-8_11
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