; speculative trade ; interactive epistemology …

We consider interactive epistemic models where individuals are described by both their "knowledge" and their "beliefs … either the extent of intersubjective truth and/or the logic of common belief: common belief in no error, common knowledge of … common belief, negative introspection of common belief, coincidence of common knowledge and common belief, and collapse of …

Firms raise cost-reducing alliances before competing with each other, but cannot fully internalize the shared 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 …