How to choose a winner : the mathematics of social choice

Instantanés de recherche mathématique à Oberwolfach

How to choose a winner : the mathematics of social choice

Suppose a group of individuals wish to choose among several options, for example electing one of several candidates to a political office or choosing the best contestant in a skating competition. The group might ask: what is the best method for choosing a winner, in the sense that it best reflects the individual preferences of the group members? We will see some examples showing that many voting methods in use around the world can lead to paradoxes and bad outcomes, and we will look at a mathematical model of group decision making. We will discuss Arrow’s impossibility theorem, which says that if there are more than two choices, there is, in a very precise sense, no good method for choosing a winner.

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Sujet mathématique

Mathématiques discrètes et fondements des mathématiques

Liens avec d'autres domaines

Humanités et sciences sociales

Auteur(s)

Victoria Powers
Senior Editor:
Carla Cederbaum
Junior Editor:
Sophia Jahns

Licence

DOI

10.14760/SNAP-2015-009-EN

Télécharger PDF

PDF

snapshots: overview

Sujet mathématique

Algèbre et théorie des nombres
Analyse
Pédagogie et éducation
Mathématiques discrètes et fondements des mathématiques
Géométrie et Topologie
Calcul numérique et calcul scientifique
Théorie des probabilités et statistique

Liens avec d'autres domaines

Chimie et sciences de la terre
Informatique
Ingénierie et technologie
Finances
Humanités et sciences sociales
Sciences de la vie
Physique
Pensées mathématiques

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