Publication:
Decomposition and arrow-like aggregation of fuzzy preferences

Consultable a partir de

Date

2020

Director

Publisher

MDPI
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión publicada / Argitaratu den bertsioa

Project identifier

MINECO//MTM2015-63608-P/ES/
ES/1PE/TIN2016-77356-P

Abstract

We analyze the concept of a fuzzy preference on a set of alternatives, and how it can be decomposed in a triplet of new fuzzy binary relations that represent strict preference, weak preference and indifference. In this setting, we analyze the problem of aggregation of individual fuzzy preferences in a society into a global one that represents the whole society and accomplishes a shortlist of common-sense properties in the spirit of the Arrovian model for crisp preferences. We introduce a new technique that allows us to control a fuzzy preference by means of five crisp binary relations. This leads to an Arrovian impossibility theorem in this particular fuzzy setting.

Keywords

Arrow’s impossibility theorems, Mathematical social choice, Fuzzy preferences, Decomposition of preferences, Aggregation of individual profiles, Social rules, Arrovian models, Paretian property, Independence of irrelevant alternatives, Dictatorship

Department

Estatistika, Informatika eta Matematika / Institute for Advanced Research in Business and Economics - INARBE / Institute for Advanced Materials and Mathematics - INAMAT2 / Estadística, Informática y Matemáticas

Faculty/School

Degree

Doctorate program

Editor version

Funding entities

This work is partially supported by the research projects MTM2015-63608-P and TIN2016-77356-P (MINECO/ AEI-FEDER, UE).

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