Guillaume Cheikbossian, Professeur d'économie à l'Université de Montpellier, Chercheur au CEE-M

Jeudi 22 mai 2025, nous accueillons Guillaume Cheikbossian, Professeur d'économie à l'Université de Montpellier et Chercheur au CEE-M.

Ses domaines d'activité :

• Microéconomie
• Économie publique
• Organisation industrielle

Titre de sa présentation : Evolution, Adaptation and Preferences: Cooperators and Defectors.

Résumé : 
The article applies adaptive dynamics from evolutionary biology to study how social preferences evolve in group settings, particularly in public goods production. It examines how individuals' efforts interactions —whether they are substitutes or complements—and how these dynamics shape cooperation. A monomorphic population where all individuals have the same social preferences (whether altruism and spitefulness) and therefore the same behaviors is an evolutionarily stable equilibrium only if the degree of complementarity between individual efforts in joint production is sufficiently high. If, on the contrary, individual efforts are too substitutable, then the population converges toward a  polymorphic  population with people having different social preferences and, therefore, where cooperators coexist with defectors.

Le séminaire a lieu à 13h30 en salle 227.