Orderings of Opportunity Sets

Vladimir Danilov (), Gleb Koshevoy () and Ernesto Savaglio
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Gleb Koshevoy: Central Institute of Economics and Mathematics RAS, Moscow, Russia
Ernesto Savaglio: ernesto@unich.it

No 282, Working Papers from ECINEQ, Society for the Study of Economic Inequality

Abstract: We consider an extension of the class of multi-utility hyper-relations, the class of semi-decent hyper-relations. A semi-decent hyper-relation satis es monotonicity, stability with respect to contraction, and the union property. We analyze the class of semi-decent hyper-relations both associating them to an appropriate class of choice functions and considering decomposition of a decent relations via elementaryones. Doing so, we consider images in the set of choice functions of three subclasses of semi-decent hyper-relations: the decent hyper-relations, the transitive decent hyper-relations , and transitive decent hyper-relations which satisfy the condition LE of lattice equivalence. We prove that the image of the set of decent hyper-relations coincides with of the set of heritage choice functions; the image of the set of transitive decent hyper-relations coincides with the set of closed choice functions; the image of the set of transitive decent hyper-relations which satisfy the LE coincides with the set of Plott functions. We consider, for each of the above subclasses of hyper-relations, the problem of the decomposition of a given hyper-relation into elementaryones, namely the representation of a given hyper-relation as the intersection of elementaryones.

Keywords: Hyper-relations; opportuntiy sets; preference for flexibility. (search for similar items in EconPapers)
JEL-codes: D01 D71 (search for similar items in EconPapers)
Pages: 17 pages
Date: 2012-12
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Working Paper: Orderings of Opportunity Sets (2012)
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