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A note on “Re-examining the law of iterated expectations for Choquet decision makers”

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  • André Lapied
  • Pascal Toquebeuf

Abstract

This note completes the main result of Zimper (Theory and decision, doi: 10.1007/s11238-010-9221-8 , 2010 ), by showing that additional conditions are needed in order the law of iterated expectations to hold true for Choquet decision makers. Due to the comonotonic additivity of Choquet expectations, the equation E[f, ν(dω)]=E[E[f(ω i, j ), ν(A i, j |A i )], ν(A i )], is valid only when the act f is comonotonic with its dynamic form, that we name “conditional certainty equivalent act”. Copyright Springer Science+Business Media New York 2013

Suggested Citation

  • André Lapied & Pascal Toquebeuf, 2013. "A note on “Re-examining the law of iterated expectations for Choquet decision makers”," Theory and Decision, Springer, vol. 74(3), pages 439-445, March.
    • Handle: RePEc:kap:theord:v:74:y:2013:i:3:p:439-445
    DOI: 10.1007/s11238-012-9297-4
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    1. André Lapied & Pascal Toquebeuf, 2010. "Atemporal non-expected utility preferences, dynamic consistency and consequentialism," Economics Bulletin, AccessEcon, vol. 30(2), pages 1661-1669.
    2. Alain Chateauneuf & Robert Kast & André Lapied, 2001. "Conditioning Capacities and Choquet Integrals: The Role of Comonotony," Theory and Decision, Springer, vol. 51(2), pages 367-386, December.
    3. André Lapied & Pascal Toquebeuf, 2010. "Atemporal non-expected utility preferences, dynamic consistency and consequentialism," Post-Print hal-03217049, HAL.
    4. Sarin, Rakesh & Wakker, Peter P, 1998. "Revealed Likelihood and Knightian Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 16(3), pages 223-250, July-Aug..
    5. Epstein, Larry G. & Schneider, Martin, 2003. "Recursive multiple-priors," Journal of Economic Theory, Elsevier, vol. 113(1), pages 1-31, November.
    6. Alexander Zimper, 2011. "Re-examining the law of iterated expectations for Choquet decision makers," Theory and Decision, Springer, vol. 71(4), pages 669-677, October.
    7. Nobuo Koida, 2012. "Nest-monotonic two-stage acts and exponential probability capacities," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 50(1), pages 99-124, May.
    8. Yoo, Keuk-Ryoul, 1991. "The iterative law of expectation and non-additive probability measure," Economics Letters, Elsevier, vol. 37(2), pages 145-149, October.
    9. Sarin, R. & Wakker, P.P., 1996. "Revealed likelihood and knightian uncertainty," Other publications TiSEM 9a47d5e6-9520-4b60-bfc9-0, Tilburg University, School of Economics and Management.
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    Cited by:

    1. André Lapied & Pascal Toquebeuf, 2011. "Dynamically consistent CEU preferences," Working Papers halshs-00856193, HAL.
    2. Rossella Agliardi, 2017. "Asymmetric Choquet random walks and ambiguity aversion or seeking," Theory and Decision, Springer, vol. 83(4), pages 591-602, December.
    3. Giulianella Coletti & Davide Petturiti & Barbara Vantaggi, 2019. "Dutch book rationality conditions for conditional preferences under ambiguity," Annals of Operations Research, Springer, vol. 279(1), pages 115-150, August.
    4. Lapied, André & Toquebeuf, Pascal, 2012. "Dynamically consistent CEU preferences on f-convex events," Mathematical Social Sciences, Elsevier, vol. 63(3), pages 252-256.

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    More about this item

    Keywords

    Choquet; Capacities; Updating; Law of iterated expectations; D81;
    All these keywords.

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty

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