, and which satisfies strong properties of knowledge as well as all the desiderata on unawareness proposed this far in the … literature. In an example of speculative trade, we demonstrate how mutual unawareness of fundamentals allows for common knowledge … standard information structures with strong properties of knowledge. …

We provide a syntactic model of unawareness. By introducing multiple knowledge modalities, one for each sub … knowledge of more aware agents. We show that the model is a complete and sound axiomatization of the set-theoretic model of …

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 …