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arXiv 1402.2801cs.GTcs.DS
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不完全监督下大型重复对策的反民俗定理

An Anti-Folk Theorem for Large Repeated Games with Imperfect Monitoring

Mallesh M. Pai, Aaron Roth, Jonathan Ullman

摘要:

我们研究无限重复的游戏设置不完美的监控。我们首先证明了一个家庭的定理表明,当玩家观察到的信号满足一个条件,称为$(ε, γ)$ -差分隐私,民间定理有一点点咬:为值的$ε$和$γ$足够小,对于一个固定的折扣因子,任何均衡的重复游戏涉及玩家玩近似均衡的阶段游戏在每个时期。接下来,我们认为,在大型游戏($n$玩家游戏中,单方面的偏差只有一个小的影响,其他玩家的效用),许多监控设置自然会导致信号,满足$(ε,γ)$ -差分隐私,为$ε$和$γ$趋于零的玩家数量$n$增长大。我们的结论是,在这种情况下,重复博弈的均衡集崩溃的阶段博弈的均衡集。

英文摘要:

We study infinitely repeated games in settings of imperfect monitoring. We first prove a family of theorems that show that when the signals observed by the players satisfy a condition known as $(ε, γ)$-differential privacy, that the folk theorem has little bite: for values of $ε$ and $γ$ sufficiently small, for a fixed discount factor, any equilibrium of the repeated game involve players playing approximate equilibria of the stage game in every period. Next, we argue that in large games ($n$ player games in which unilateral deviations by single players have only a small impact on the utility of other players), many monitoring settings naturally lead to signals that satisfy $(ε,γ)$-differential privacy, for $ε$ and $γ$ tending to zero as the number of players $n$ grows large. We conclude that in such settings, the set of equilibria of the repeated game collapse to the set of equilibria of the stage game.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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