Sub-models for Interactive Unawareness
نویسنده
چکیده
We propose a notion of a sub-model for each agent at each state in the Heifetz et al (2006) model of interactive unawareness. Presuming that each agent is fully cognizant of his sub-model causes no di¢ culty and fully describes his knowledge and his beliefs about the knowledge and awareness of others. In addition by relaxing some of the conditions that Heifetz et al imposed in their framework we can accommodate agents who have mistaken beliefs about the awareness levels of other agents. However, if we require informational consistency and another condition on knowledge events, then false beliefs are precluded and we return to the original Heifetz et al model. Keywords: Interactive Unawareness, Sub-models JEL Classi cation: C70; C72; D80; D82
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