Title: Endogenizing Epistemic Actions,
Abstract: Through a series of examples, we illustrate some important drawbacks that the
action logic framework suffers from in its ability to represent the dynamics of
information updates. We argue that these problems stem from the fact that the
action model, a central construct designed to encode agents' uncertainty about
actions, is itself effectively common knowledge amongst the agents. In response
to these difficulties, we motivate and propose an alternative semantics that
avoids them by (roughly speaking) endogenizing the action model. We discuss the
relationship to action logic, and provide a sound and complete axiomatization.