Seminars of Logic organized by the Logic Group of the Dipartment of Philosophy "Piero Martinetti"

Gabriella Pigozzi (Université Paris-Dauphine)

Group argument evaluation

May 8, 2019, h. 16:30-18:30.

Room Enzo Paci, Directorate of the Department of Philosophy, Universita' degli Studi di Milano, Via Festa del Perdono 7, h 16:30-18:30.

Abstract

Paradoxes in group decision making (like Condorcet paradox in social choice theory and the discursive dilemma in judgment aggregation) are characterized by the fact that the combination of consistent individual positions may lead to inconsistent collective outcomes. However, this problem may overshadow another diculty: when is a group decision defendable? In this talk I will use abstract argumentation theory to tackle this question. I will present three aggregation operators that ensure collectively rational and defendable group decisions, and study them with respect to Pareto optimality and strategy-proofness.

ORGANIZERS
The Logic Group, Department of Philosophy, University of Milan
www.filosofia.unimi.it/logic

CONTACT
marcello.dagostino@unimi.it - www.filosofia.unimi.it/dagostino

Participation is strongly recommended to students of the Doctoral School in Philosophy and Human Sciences.

Everyone interested is welcome to attend.