Ballester Oyarzun, Miguel Ángel

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https://academica-e.unavarra.es/handle/2454/48654

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Ballester Oyarzun

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Miguel Ángel

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Economía

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750913

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3108

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Now showing 1 - 4 of 4
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    PublicationOpen Access
    A theory of reference dependent behavior
    (2004) Apesteguía Garcés, José; Ballester Oyarzun, Miguel Ángel; Economía; Ekonomia
    There is extensive field and experimental evidence in a wide variety of environments showing that behavior depends on a reference point. This paper provides an axiomatic characterization for such behavior. Our approach is dual, we study choice behavior and preference relations. We proceed by gradually imposing more structure on behavior, requiring higher levels of rationality, that free the decision-maker from certain types of manipulations. Depending on the phenomena one wants to model, one degree of behavioral structure will be appropriate or another. We provide two applications of the theory: one to model the status-quo bias, and another to model addictive behavior.
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    PublicationOpen Access
    Minimal bools of rationales
    (2005) Apesteguía Garcés, José; Ballester Oyarzun, Miguel Ángel; Economía; Ekonomia
    Kalai, Rubinstein, and Spiegler (2002) propose the rationalization of choice functions that violate the “independence of irrelevant alternatives” axiom through a collection (book) of linear orders (rationales). In this paper we present an algorithm which, for any choice function, gives (i) the minimal number of rationales that rationalizes the choice function, (ii) the composition of such rationales, and (iii) information on how choice problems are related to rationales. As in the classical case, this renders the information given by a choice function completely equivalent to that given by a minimal book of rationales. We also study the structure of several choice procedures that are prominent in the literature.
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    PublicationOpen Access
    On the equivalence of the two existing extensions of the leximax criterion to the infinite case
    (2006) Arlegi Pérez, Ricardo; Ballester Oyarzun, Miguel Ángel; Besada, M.; Miguel Velasco, Juan Ramón de; Nieto Vázquez, Jorge; Vázquez, C.; Economía; Ekonomia
    Using a common framework, we consider the two existing extensions of the leximax criterion to infinite environments (Arlegi et al. (2005) and Ballester and De Miguel (2003), and show that, though the respective definitions of the rules and their axiomatic characterizations appear to differ considerably, they actually propose the same extension of the leximax criterion to the infinite case.
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    PublicationOpen Access
    Variable population egalitarian ethics and the critical-level: a note
    (2000) Arlegi Pérez, Ricardo; Ballester Oyarzun, Miguel Ángel; Nieto Vázquez, Jorge; Economía; Ekonomia
    This paper explores the introduction of a variable critical-level in a variable population context. We focus the attention on the “Critical-Level Egalitarian Rule”, a social evaluation procedure which compares two social states as follows: (i) It reproduces the leximin criterion when applied to vectors of identical dimension and (ii) otherwise, it completes the small one with so many times a variable critical-level as to make the two vectors equal in size and applies the leximin criterion again. We prove that the use of a strict monotonic critical-level leads to the intransitivity of the social evaluation rule. This problem disappears when a weak monotonicity condition is required.