Schipper, Burkhard C
(2010):
*Revealed Unawareness.*

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## Abstract

I develop awareness-dependent subjective expected utility by taking unawareness structures introduced in Heifetz, Meier, and Schipper (2006, 2008, 2009) as primitives in the Anscombe-Aumann 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 awareness-dependent 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 |
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Original Title: | Revealed Unawareness |

Language: | English |

Keywords: | Unawareness; awareness; unforeseen contingencies; null; zero probability; subjective expected utility; Anscombe-Aumann; small worlds; extensionality of acts; event exchangeability |

Subjects: | D - Microeconomics > D0 - General > D03 - Behavioral Microeconomics: Underlying Principles D - Microeconomics > D8 - Information, Knowledge, and Uncertainty > D81 - Criteria for Decision-Making 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: | 28 Sep 2019 14:39 |

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URI: | https://mpra.ub.uni-muenchen.de/id/eprint/21491 |