Modeling Ambiguity Averse Behavior of Individual Decision Making: Prospect Theory under Uncertainty

  • Hiroyuki Tamura
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5861)


Firstly, a behavioral model based on the "Prospect Theory" developed by Kahneman and Tversky is described. In this model weighting function of non-additive probabilities are introduced where probability of each event occurring is known. The effective application of this approach to the public sector is shown in modeling risks of extreme events with low probability and high outcome. Next, a behavioral model based on our "Prospect Theory under Uncertainty" is described where basic probability of a set of events is known but occurrence probability of each event is not known. It is shown that this model could properly explain the Ellsberg paradox of ambiguity aversion. Potential applicability of this approach to assessing global environmental-economic policies is described.


Individual decision making Behavioral (descriptive) model Utility theory Expected utility paradox Prospect theory under uncertainty 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Hiroyuki Tamura
    • 1
  1. 1.Faculty of Engineering ScienceKansai UniversityOsakaJapan

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