In Game theory, a Cooperative game (or coalitional game) is a game with competition between groups of players (“coalitions”) due to the possibility of external enforcement of cooperative behavior (e.g. through contract law). Those are opposed to Non-cooperative game in which there is either no possibility to forge alliances or all agreements need to be self-enforcing (e.g. through credible threats).
Bibliography
“Cooperative Game Theory.” 2022. Wikipedia, May. https://en.wikipedia.org/w/index.php?title=Cooperative_game_theory&oldid=1090843550.