Arlegi Pérez, RicardoDimitrov, Dinko2016-05-102016-05-102006https://academica-e.unavarra.es/handle/2454/20653This paper is devoted to the study of opportunity set comparisons when the characteristics of the options within the sets in question may be ambiguous. We assume that agents display a preference for freedom of choice, but also aversion to the presence of ambiguous options. We propose a suitable environment for approaching this problem, and provide axiomatic characterizations of several rules for ranking sets in such a context.34 p.application/pdfengCC Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)Ambiguity aversionEasy choicesRanking setsFreedom of choiceinfo:eu-repo/semantics/workingPaperinfo:eu-repo/semantics/openAccess