1. Ebbe Groes, Hans JØrgen Jacobsen, Birgitte Sloth & Torben Tranæs (1999). Testing the Intransitivity Explanation of the Allais Paradox. Theory and Decision 47 (3):229-245.
    This paper uses a two-dimensional version of a standard common consequence experiment to test the intransitivity explanation of Allais-paradox-type violations of expected utility theory. We compare the common consequence effect of two choice problems differing only with respect to whether alternatives are statistically correlated or independent. We framed the experiment so that intransitive preferences could explain violating behavior when alternatives are independent, but not when they are correlated. We found the same pattern of violation in the two cases. This is (...)
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  2. Ebbe Groes, Hans Jørgen Jacobsen, Birgitte Sloth & Torben Tranaes (1998). Nash Equilibrium with Lower Probabilities. Theory and Decision 44 (1):37-66.
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  3. Ebbe Groes, Hans Jørgen Jacobsen, Birgitte Sloth & Torben Tranaes (1998). Nash Equilibrium with Lower Probabilities. Theory and Decision 44 (1):37-66.
    We generalize the concept of Nash equilibrium in mixed strategies for strategic form games to allow for ambiguity in the players' expectations. In contrast to other contributions, we model ambiguity by means of so-called lower probability measures or belief functions, which makes it possible to distinguish between a player's assessment of ambiguity and his attitude towards ambiguity. We also generalize the concept of trembling hand perfect equilibrium. Finally, we demonstrate that for certain attitudes towards ambiguity it is possible to explain (...)
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