Hualde Vidaurre, Mikel

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Hualde Vidaurre

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Mikel

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Economía

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Now showing 1 - 2 of 2
  • PublicationOpen Access
    On the aversion to incomplete preferences
    (Springer, 2021) Arlegi Pérez, Ricardo; Bourgeois-Gironde, Sacha; Hualde Vidaurre, Mikel; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
    We propose an axiomatization of aversion to incomplete preferences. Some prevailing models of incomplete preferences rely on the hypothesis that incompleteness is temporary and that by keeping their opportunity set open individuals reveal a preference for flexibility. We consider that the maintenance of incomplete preference is also aversive. Our model allows us to show how incompleteness induces an aversive attitude in two different ways: intrinsic and instrumental. Intrinsic aversion holds when one instance of incomplete preference in the set suffices to decrease its utility. Instrumental aversion holds only insofar dominating options are affected by incompleteness. Given two partially overlapping sets of axioms on the binary relation over sets we formalize their consistency with the two types of aversion to incompleteness. Finally, we relate our model to the classical Sen's distinction between tentative and assertive incompleteness. The spelling out of this distinction in the terms of our approach uncovers to what extent aversion to incompleteness may be compatible with a preference for flexibility.
  • PublicationOpen Access
    Attitudes toward choice with incomplete preferences: an experimental study
    (Elsevier, 2022) Arlegi Pérez, Ricardo; Bourgeois-Gironde, Sacha; Hualde Vidaurre, Mikel; Economía; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Gobierno de Navarra / Nafarroako Gobernua; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, PJUPNA19-2022
    We present an experiment to test different individual attitudes toward choice, such as preference for flexibility, choice aversion, betweenness and choice neutrality. Unlike other related experimental papers, we want to analyze whether different choice attitudes can coexist for the same subject, depending on the characteristics of the choice set she is facing. In particular, our main hypothesis is that the presence of incomparability among the alternatives in the choice set, and the time at which such incomparability is solved, affect crucially the kind of attitude towards choice that the subject will exhibit. We find that, indeed, choice attitudes are not homogeneous across choice sets, yet they are conditional on the preferences over the alternatives. We also find some evidence supporting that subjects tend to value heuristically sets as a whole.