Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/22866 
Year of Publication: 
2003
Series/Report no.: 
Bonn Econ Discussion Papers No. 17/2003
Publisher: 
University of Bonn, Bonn Graduate School of Economics (BGSE), Bonn
Abstract: 
The standard state-spaces of asymmetric information preclude non- trivial forms of unawareness (Dekel, Lipman and Rustichini, 1998). We introduce a generalized state-space model that allows for non-trivial unawareness among several individuals, 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 of willingness to trade together with strict preference for trade. Such a state of affairs is impossible to model in standard information structures with strong properties of knowledge.
Subjects: 
unawareness
awareness
knowledge
interactive epistemology
speculative trade
bounded perception
JEL: 
C70
D82
D80
C72
Document Type: 
Working Paper

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