Arlegi Pérez, Ricardo

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https://academica-e.unavarra.es/handle/2454/48591

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Arlegi Pérez

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Ricardo

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Economía

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INARBE. Institute for Advanced Research in Business and Economics

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0000-0002-7664-2742

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88397

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354

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End date: 1999 × Start date: 1998 ×

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    PublicationOpen Access
    Equality of opportunities: cardinality-based criteria
    (1998) Arlegi Pérez, Ricardo; Nieto Vázquez, Jorge; Economía; Ekonomia
    In this paper we study possible rankings of opportunity profiles. An opportunity profile is a list of sets of alternative opportunities, one set for each agent in the society. We compare such opportunity profiles on the basis of the notion of “equality of opportunities”. Our main results show the necessary and sufficient conditions for this comparison to be made using exclusively the information provided by two cardinal measures: the number of common alternatives for all sets in a given profile and/or the difference between the number of alternatives of individual sets. We also show that, under given circumstances, the only way to solve conflicts between these two numbers is to combine them in a lexicographic procedure.
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    PublicationOpen Access
    Incomplete preferences and the preference for flexibility
    (1998) Arlegi Pérez, Ricardo; Economía; Ekonomia
    Sometimes individual agents display in their decisions a preference for having more opportunities to choose from. In this paper this fact is interpreted from a preference for flexibility approach, which links with the hypothesis that there is some uncertainty or vagueness in the decision maker’s preferences. We define an asymmetric (but not necessarily transitive, or complete) preference on a finite universe of alternatives, X, to express that vagueness. Taking this preference as a reference, the notion of preference for flexibility is described by means of the axiomatic characterization of a class of binary relations over the possible subsets of X, which are interpreted as opportunity sets. Subsequently, we demonstrate the relationship between the results and the representation theorem of preference for flexibility proposed by Kreps [10]. Finally, it is shown how some special orderings of the related literature could be interpreted as elements of the class characterized here.