0 something that is known to many people but often not made known officially: --
It was common knowledge that several doctors at that hospital were incompetent.
However, this move also suggests a dynamical analysis of anarchy, one that assumes no common knowledge.
Two types of knowledge were identified that can only be learned collectively, namely, common knowledge and knowledge of knowledge states of other agents.
Apart from everything else, the asymmetry implies that players' models of one another could never be common knowledge in a game.
If we want an answer to that question, we cannot use a modelling strategy which presupposes that properties of the model are common knowledge.
It became part of the common knowledge and as such, it is hardly ever mentioned.
The point of a formal model is to assume that the electoral response is common knowledge.
It is common knowledge that a great many crimes now carry punishments that are little more than fines.
At first glance, this runs counter to common knowledge and expectations.