Group Deliberation and the Revision of Individual Judgments: A Social-Choice-Theoretic Perspective

La sagesse collective : principes et mécanismesColloque des 22-23 mai 2008,organisé par l'Institut du Monde Contemporain du Collège de France,sous la direction du Professeur Jon Elster.Intervention de Christian List.While a large social-choice-theoretic literature discusses the aggregation of individual judgments into collective ones,there is relatively little formal work on the revision of individual judgments in group deliberation. I develop a model of judgment revision and prove a baseline impossibility result: any judgment revision function satisfying some initially plausible conditions is the identity function,under which no opinion change occurs. I identify escape routes from this impossibility and argue that successful group deliberation must be holistic.: it cannot generally be restricted to one proposition at a time but must focus on larger webs of interconnected propositions. This echoes the Duhem-Quine .holism thesis.on scienti.c theory testing.My approach opens up a new way of analyzing deliberative processes axiomatically.

Disciplines : Philosophie et psychologie,Interaction sociale, communication,Science politique
Mots-clés : comportement collectif,démocratie,rationalité,sagesse,prise de décision,interaction sociale
Type de document : image en mouvement
Type de ressource : lecture
Niveau : licence
Auteurs ou éditeurs : Christian List,C.E.R.I.M.E.S.,COLLEGE DE FRANCE,Marcel LECAUDEY,Loïc QUENTIN