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Ellsberg`s 2-Color Experiment, Bid-Ask Behavior and Ambiguity

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Author Info
Sujoy Mukerji
Jean-Marc Tallon

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Abstract

Results in this note relate the observation of an interval of prices at which a DM strictly prefers to hold a zero position on an asset (termed `bid-ask behavior`) to the DM`s perception of the underlying payoff relevant events as ambiguous, as the term is defined in Epstein and Zhang (2001). The connection between bid-ask behavior and ambiguity is established without invoking a parametric preference form, such as the Choquet expected utility or the max-min multiple priors model. This allows us to draw an observable distinction between bid-ask behavior that may arise purely due to first-order risk aversion type effects, such as those which could arise even if preferences were probabilistically sophisticated, and the bid-ask behavior that involve ambiguity perceptions.

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Paper provided by University of Oxford, Department of Economics in its series Economics Series Working Papers with number 114.

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Date of creation: 2002
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Handle: RePEc:oxf:wpaper:114

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Related research
Keywords: Ellsberg Paradox bid-ask spread testing for ambiguity aversion uncertainty aversion unforeseen cointingencies subjective state spaces.

Find related papers by JEL classification:
D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

  1. Mark J. Machina, 2000. "Payoff Kinks in Preferences over Lotteries," University of California at San Diego, Economics Working Paper Series 2000-22, Department of Economics, UC San Diego. [Downloadable!]
    Other versions:
  2. Epstein, Larry G & Wang, Tan, 1994. "Intertemporal Asset Pricing Under Knightian Uncertainty," Econometrica, Econometric Society, vol. 62(2), pages 283-322, March. [Downloadable!] (restricted)
  3. Dekel, Eddie & Lipman, Barton L & Rustichini, Aldo, 2001. "Representing Preferences with a Unique Subjective State Space," Econometrica, Econometric Society, vol. 69(4), pages 891-934, July.
    Other versions:
  4. Epstein, Larry G., 2000. "Are Probabilities Used in Markets ?," Journal of Economic Theory, Elsevier, vol. 91(1), pages 86-90, March. [Downloadable!] (restricted)
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  5. Epstein Larry G. & Wang Tan, 1995. "Uncertainty, Risk-Neutral Measures and Security Price Booms and Crashes," Journal of Economic Theory, Elsevier, vol. 67(1), pages 40-82, October. [Downloadable!] (restricted)
  6. Dow, James & Werlang, Sergio Ribeiro da Costa, 1992. "Uncertainty Aversion, Risk Aversion, and the Optimal Choice of Portfolio," Econometrica, Econometric Society, vol. 60(1), pages 197-204, January. [Downloadable!] (restricted)
  7. Ghirardato, Paolo & Marinacci, Massimo, 2002. "Ambiguity Made Precise: A Comparative Foundation," Journal of Economic Theory, Elsevier, vol. 102(2), pages 251-289, February. [Downloadable!] (restricted)
  8. Epstein, Larry G & Zhang, Jiankang, 2001. "Subjective Probabilities on Subjectively Unambiguous Events," Econometrica, Econometric Society, vol. 69(2), pages 265-306, March.
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  9. Gul, Faruk, 1991. "A Theory of Disappointment Aversion," Econometrica, Econometric Society, vol. 59(3), pages 667-86, May. [Downloadable!] (restricted)
  10. Ghirardato, Paolo & Katz, Jonathan N., 2000. "Indecision Theory: Explaining Selective Abstention in Multiple Elections," Working Papers 1106, California Institute of Technology, Division of the Humanities and Social Sciences. [Downloadable!]
  11. Mukerji, Sujoy, 1998. "Ambiguity Aversion and Incompleteness of Contractual Form," American Economic Review, American Economic Association, vol. 88(5), pages 1207-31, December. [Downloadable!] (restricted)
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  1. Larry Epstein & Martin Schneider, 2002. "Learning Under Ambiguity," RCER Working Papers 497, University of Rochester - Center for Economic Research (RCER), revised Mar 2005. [Downloadable!]
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