A few bad apples spoil the barrel: An anti-folk theorem for anonymous repeated games with incomplete information
By: Sugaya, Takuo and Wolitzky, Alexander
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Material type: 
BookPublisher: The American Economic Review Description: 110(12), Dec, 2020: p.3817-3835.Subject(s): Noncooperative Games C73 Stochastic and Dynamic Games; Evolutionary Games; Repeated Games
In:
The American Economic ReviewSummary: We study anonymous repeated games where players may be "commitment types" who always take the same action. We establish a stark anti-folk theorem: if the distribution of the number of commitment types satisfies a smoothness condition and the game has a "pairwise dominant" action, this action is almost always taken. This implies that cooperation is impossible in the repeated prisoner's dilemma with anonymous random matching. We also bound equilibrium payoffs for general games. Our bound implies that industry profits converge to zero in linear-demand Cournot oligopoly as the number of firms increases. – Reproduced
| Item type | Current location | Call number | Vol info | Status | Date due | Barcode |
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Articles
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Indian Institute of Public Administration | 110(12), Dec, 2020: p.3817-3835 | Available | AR124904 |
We study anonymous repeated games where players may be "commitment types" who always take the same action. We establish a stark anti-folk theorem: if the distribution of the number of commitment types satisfies a smoothness condition and the game has a "pairwise dominant" action, this action is almost always taken. This implies that cooperation is impossible in the repeated prisoner's dilemma with anonymous random matching. We also bound equilibrium payoffs for general games. Our bound implies that industry profits converge to zero in linear-demand Cournot oligopoly as the number of firms increases. – Reproduced
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