Key players in network-oriented interventions

Individuals who are embedded in a social network decide non-cooperatively how much effort to exert in supporting victims of misbehavior. Each individual’s optimal effort depends on the contextual effect, the social multiplier effect and the social conformity effect. We characterize the Nash equilibr...

ver descrição completa

Detalhes bibliográficos
Autores: Atay, Ata, Mauleon, Ana, Schopohl, Simon, Vannetelbosch, Vincent
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2023
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/206589
Acesso em linha:https://hdl.handle.net/2445/206589
Access Level:Acceso aberto
Palavra-chave:Ciberassetjament escolar
Xarxes socials
Conformisme
Cyberbullying
Social networks
Conformity
Descrição
Resumo:Individuals who are embedded in a social network decide non-cooperatively how much effort to exert in supporting victims of misbehavior. Each individual’s optimal effort depends on the contextual effect, the social multiplier effect and the social conformity effect. We characterize the Nash equilibrium and we derive an inter-centrality measure for finding the key player who once isolated increases the most the aggregate effort. An individual is more likely to be the key player if she is influencing many other individuals, she is exerting a low effort because of her characteristics, and her neighbors are strongly influenced by her. The key player policy increases substantially the aggregate effort and the targeted player should never be selected randomly. The key player is likely to remain the key player in presence of social workers except if she is becoming much less influential due to her closeness to social workers. Finally, we consider alternative policies (e.g. training bystanders for supporting victims) and compare them to the policy of isolating the key player