An increasing number of parents refrain from vaccinating their children. This causes lower immunisation coverage, resulting in disease outbreaks. Online misinformation about early-childhood vaccination is a potential cause this problem. study tests whether warning tool, with the appearance traffic light, can influence parents’ information choices. online experiment was conducted and expecting (...

I propose a modal logic that enables to reason about self-regarding and other-regarding motivations in strategic games. This logic integrates the concepts of joint action, belief, individual and group payoff. The first part of the article is focused on self-regarding agents. A self-regarding agent decides to perform a certain action only if he believes that this action maximizes his own persona...