Tuesday 13
D8 - Miscellaneous III
Chair: Olivier Bonroy
› 14:50 - 15:15 (25min)
› Room 103 - B. Martinu
Debunking Rumors in Networks
Luca Paolo Merlino  1@  , Nicole Tabasso  2@  
1 : Centre d'économie de la Sorbonne  (CES)  -  Website
Université Paris I - Panthéon-Sorbonne, CNRS : UMR8174
Maison des Sciences Économiques - 106-112 Boulevard de l'Hôpital - 75647 Paris Cedex 13 -  France
2 : University of Surrey

We study the diffusion of a true message and a false message when agents can debunk the false rumor through costly verification. We find that the diffusion of the false rumor can foster the diffusion of the true message by triggering verification. As a result, a decrease in the cost of verification can imply a decrease of the diffusion of the true message via a decrease of the diffusion of the false rumor. However, the relative prevalence of the truth vs. the rumor increases when agents socialize more.


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