博弈论教材
理性： CKR (Common Knowledge of Rationa
lity) Dirty faces game (Littlewood, 1953): the game suddenly. Three people in the house, not allowed to speak. Beautiful women come in, said: at least one of you is a dirty face. Three ring of view, there was no response. Beauty said: you know what? the beginning of the common knowledge, and truth: the three faces are dirty, all blushed.