Equilibrium point

Japanese: 均衡点 - きんこうてん
Equilibrium point

…Non-zero-sum n- person games are divided into non-cooperative games and cooperative games. In non-cooperative games, when all other players are using a certain strategy and changing your strategy alone will not increase your payoff, the set of strategies is called an equilibrium point. In the following Prisoner's Dilemma type game, the set of strategies (α 2 , β 2 ) is the equilibrium point. …

*Some explanations of terms that mention the "equilibrium point" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 非ゼロ和n人ゲームは非協力ゲームと協力ゲームとに分かれる。非協力ゲームでは,自分以外のプレーヤーがある戦略をとっていて,自分だけが戦略を変えても利得が増加しないとき,その戦略の組を均衡点と呼ぶ。次のような囚人のジレンマ型ゲームでは, (α2,β2)という戦略の組が均衡点である。…

※「均衡点」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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