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本データベースは、山口大学において生産された電子的学術情報資源を学内外に無償で発信・提供することにより、学術研究の振興及び社会貢献に寄与することを目的として公開しています。

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Bulletin of the Faculty of Education, Yamaguchi University Volume 72
published_at 2023-01-31
Publishers : Faculty of Education, Yamaguchi University Updated At : 2023-01-27 13:09:18
IEEE Access Volume 11 pp. 5062 - 5068
published_at 2023-01-10
Imitation is simple behavior which uses successful actions of others in order to deal with one’s own problems. Because success of imitation generally depends on whether profit of an imitating agent coincides with those of other agents or not, game theory is suitable for specifying situations where imitation can be successful. One of the concepts describing successfulness of imitation in repeated two-player symmetric games is unbeatability. For infinitely repeated two-player symmetric games, a necessary and sufficient condition for some imitation strategy to be unbeatable was specified. However, situations where imitation can be unbeatable in multi-player games are still not clear. In order to analyze successfulness of imitation in multi-player situations, here we introduce a class of totally symmetric games called unexploitable games, which is a natural extension of two-player symmetric games without exploitation cycles. We then prove that, for infinitely repeated unexploitable games, there exist unbeatable imitation strategies. Furthermore, we also prove that, for infinitely repeated non-trivial unexploitable games, there exist unbeatable zero-determinant strategies, which unilaterally enforce some relationships on payoffs of players. These claims are demonstrated in the public goods game, which is the simplest unexploitable game. These results show that there are situations where imitation is unbeatable even in multi-player games.
Creators : Ueda Masahiko Publishers : IEEE Updated At : 2023-01-25 14:24:23
村上春樹とアダプテーション研究 Volume 1 pp. 88 - 88
published_at 2023-01-31
Creators : Yamane Yumie Publishers : 村上春樹とアダプテーション研究会 Updated At : 2023-01-20 15:25:30
村上春樹とアダプテーション研究 Volume 1 pp. 84 - 87
published_at 2023-01-31
Creators : 阿部 翔太 Publishers : 村上春樹とアダプテーション研究会 Updated At : 2023-01-20 15:21:10
村上春樹とアダプテーション研究 Volume 1 pp. 80 - 83
published_at 2023-01-31
Creators : ダルミ カタリン Publishers : 村上春樹とアダプテーション研究会 Updated At : 2023-01-20 14:55:47