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Alternative Semantics for Unawareness

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Author Info
Joseph Y. Halpern (Cornell University)

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Abstract

Modica and Rustichini [Theory and Decision 37, 1994] provided a logic for reasoning about knowledge where agents may be unaware of certain propositions. However, their original approach had the unpleasant property that nontrivial unawareness was incompatible with partitional information structures. More recently, Modica and Rustichini [Games and Economic Behavior 27:2, 1999] have provided an approach that allows for nontrivial unawareness in partitional information structures. Here it is shown that their approach can be viewed as a special case of a general approach to unawareness considered by Fagin and Halpern [Artificial Intelligence 34, 1988].

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File URL: http://129.3.20.41/eps/game/papers/0004/0004010.pdf
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Paper provided by EconWPA in its series Game Theory and Information with number 0004010.

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Length: 19 pages
Date of creation: 22 Nov 2000
Date of revision:
Handle: RePEc:wpa:wuwpga:0004010

Note: Type of Document - PDF; prepared on Unix; pages: 19; figures: included. To appear, Games and Economic Behavior 37. 1994].
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Web page: http://129.3.20.41

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Related research
Keywords: awareness; unawareness;

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Find related papers by JEL classification:
C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
C80 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - General

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  1. Oliver Board & Kim-Sau Chung, 2006. "Object-Based Unawareness," Working Papers 245, University of Pittsburgh, Department of Economics, revised Jan 2006. [Downloadable!]
    Other versions:
  2. Aviad Heifetz & Martin Meier & Burkhard C. Schipper, 2005. "A Canonical Model for Interactive Unawareness," Bonn Econ Discussion Papers bgse23_2005, University of Bonn, Germany. [Downloadable!]
    Other versions:
  3. Oliver Board & Kim-Sau Chung, 2008. "Object-Based Unawareness: Theory and Applications," Working Papers 378, University of Pittsburgh, Department of Economics, revised Mar 2009. [Downloadable!]
  4. Brian, HILL, 2007. "Dynamic Awareness," Les Cahiers de Recherche 881, HEC Paris. [Downloadable!]
  5. HEIFETZ, Aviad & MEIER, Martin & SCHIPPER, Burkhard C., 2004. "Interactive unawareness," CORE Discussion Papers 2004059, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE). [Downloadable!]
    Other versions:
    • Aviad Heifetz & Martin Meier & Burkhard C. Schipper, 2005. "Interactive Unawareness," Discussion Papers 52, SFB/TR 15 Governance and the Efficiency of Economic Systems, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich. [Downloadable!]
    • Heifetz, Aviad & Meier, Martin & Schipper, Burkhard C., 2006. "Interactive unawareness," Journal of Economic Theory, Elsevier, vol. 130(1), pages 78-94, September. [Downloadable!] (restricted)
  6. Galanis, Spyros, . "Unawareness of Theorems," Discussion Paper Series In Economics And Econometrics 0709, Economics Division, School of Social Sciences, University of Southampton. [Downloadable!]
  7. Jernej Copic & Andrea Galeotti, 2006. "Awareness as an Equilibrium Notion: Normal-Form Games," Economics Discussion Papers 614, University of Essex, Department of Economics. [Downloadable!]
  8. Aviad Heifetz & Martin Meier & Burkhard C. Schipper, 2003. "Interactive Unawareness and Speculative Trade," Bonn Econ Discussion Papers bgse17_2003, University of Bonn, Germany. [Downloadable!]
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