This research note proposes a decision theoretic definition of the popular phenomenon of Fear of Missing Out (FOMO). Our definition assumes that FOMO causes individuals to base their decision-making utility on their own anticipated regret and the decisions made by individuals in their social peer group. We use an example related to asset trading in order to illustrate how to analyse decision-making under FOMO preferences and to highlight differences with the concept of regret aversion.
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Mohammed Kaddouhah (2024) studied this question.
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