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Heterogeneous Awareness and the Possibility of Agreement

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  • Ewerhart, Christian

    ()
    (Deutsche Börse AG)

Abstract

This paper explores the consequences of assuming that agents may be unaware of certain outcomes in the state space. One way to construct such a setting is from what we call awareness types. When agents possess limited awareness of the state space, information may be delusive, but agents can still not commonly believe to have different posteriors. The paper also discusses the properties of knowledge under limited awareness. E.g., it is shown that an ignorant agent\ is aware of his ignorance if and only if he knows that he is ignorant. When the state space is sufficiently rich, state awareness satisfies plausibility, AU-introspection, and KU-introspection.

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Bibliographic Info

Paper provided by Sonderforschungsbereich 504, Universität Mannheim & Sonderforschungsbereich 504, University of Mannheim in its series Sonderforschungsbereich 504 Publications with number 01-30.

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Length: 30 pages
Date of creation: 12 May 2001
Date of revision:
Handle: RePEc:xrs:sfbmaa:01-30

Note: Financial support from the Deutsche Forschungsgemeinschaft, SFB 504, at the University of Mannheim, is gratefully acknowledged.
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Cited by:
  1. Spyros Galanis, 2013. "Unawareness of theorems," Economic Theory, Springer, vol. 52(1), pages 41-73, January.
  2. Heifetz, Aviad & Meier, Martin & Schipper, Burkhard C., 2005. "Interactive Unawareness," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 52, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  3. Feinberg, Yossi, 2005. "Games with Incomplete Awareness," Research Papers 1894, Stanford University, Graduate School of Business.
  4. Burkhard C. Schipper & Martin Meier & Aviad Heifetz, 2005. "A Canonical Model for Interactive Unawareness," Working Papers 57, University of California, Davis, Department of Economics.
  5. Spyros Galanis, 2011. "Syntactic foundations for unawareness of theorems," Theory and Decision, Springer, vol. 71(4), pages 593-614, October.
  6. Aviad Heifetz & Martin Meier & Burkhard C. Schipper, 2003. "Interactive Unawareness and Speculative Trade," Bonn Econ Discussion Papers bgse17_2003, University of Bonn, Germany.
  7. Aviad Heifetz & Martin Meier & Burkhard Schipper, 2011. "Unawareness, Beliefs, and Speculative Trade," Working Papers 118, University of California, Davis, Department of Economics.

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