Unawareness of theorems

Spyros Galanis
2011 Economic Theory  
This paper provides a set-theoretic model of knowledge and unawareness. A new property called Awareness Leads to Knowledge shows that unawareness of theorems not only constrains an agent's knowledge, but also, can impair his reasoning about what other agents know. For example, in contrast to Li (2009 ), Heifetz et al. (2006 and the standard model of knowledge, it is possible that two agents disagree on whether another agent knows a particular event. The model follows Aumann (1976) in defining
more » ... mmon knowledge and characterizing it in terms of a self evident event, but departs in showing that no-trade theorems do not hold. JEL-Classifications: C70, C72, D80, D82.
doi:10.1007/s00199-011-0683-x fatcat:jc42robjhbbspl4snzwr235hoa