Schipper, Burkhard C (2010): Revealed Unawareness.

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Abstract
I develop awarenessdependent subjective expected utility by taking unawareness structures introduced in Heifetz, Meier, and Schipper (2006, 2008, 2009) as primitives in the AnscombeAumann approach to subjective expected utility. I observe that a decision maker is unaware of an event if and only if her choices reveal that the event is "null" and the negation of the event is "null". Moreover, I characterize "impersonal" expected utility that is behaviorally indistinguishable from awarenessdependent subject expected utility and assigns probability zero to some subsets of states that are not necessarily events. I discuss in what sense impersonal expected utility can not represent unawareness.
Item Type:  MPRA Paper 

Original Title:  Revealed Unawareness 
Language:  English 
Keywords:  Unawareness; awareness; unforeseen contingencies; null; zero probability; subjective expected utility; AnscombeAumann; small worlds; extensionality of acts; event exchangeability 
Subjects:  D  Microeconomics > D0  General > D03  Behavioral Economics; Underlying Principles D  Microeconomics > D8  Information, Knowledge, and Uncertainty > D81  Criteria for DecisionMaking under Risk and Uncertainty C  Mathematical and Quantitative Methods > C7  Game Theory and Bargaining Theory > C70  General D  Microeconomics > D8  Information, Knowledge, and Uncertainty > D80  General C  Mathematical and Quantitative Methods > C7  Game Theory and Bargaining Theory > C72  Noncooperative Games 
Item ID:  21491 
Depositing User:  Burkhard C Schipper 
Date Deposited:  22. Mar 2010 00:21 
Last Modified:  12. Feb 2013 12:20 
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URI:  http://mpra.ub.unimuenchen.de/id/eprint/21491 