e/Quasi-perfect equilibrium

Information
has gloss	eng: Quasi-perfect equilibrium is a refinement of Nash Equilibrium for extensive form games due to Eric van Damme. Informally, a player playing by a strategy from a quasi-perfect equilibrium takes observed as well as potential future mistakes of his opponents into account but assumes that he himself will not make a mistake in the future, even if he observes that he has done so in the past. Quasi-perfect equilibrium is a further refinement of sequential equilibrium. It is itself refined by normal form proper equilibrium.
lexicalization	eng: quasi-perfect equilibrium
instance of	(noun) a stable situation in which forces cancel one another equilibrium