Strategically delusional
通过实验检验过度自信是否是一种在社交互动中影响他人的策略，发现当参与者预期要说服他人时，更可能高估自己的表现并有偏向地搜寻信息。
Abstract We aim to test the hypothesis that overconfidence arises as a strategy to influence others in social interactions. To address this question, we design an experiment in which participants are incentivized either to form accurate beliefs about their performance at a test, or to convince a group of other participants that they performed well. We also vary participants’ ability to gather information about their performance. Our results show that participants are more likely to (1) overestimate their performance when they anticipate that they will try to persuade others and (2) bias their information search in a manner conducive to receiving more positive feedback, when given the chance to do so. In addition, we also find suggestive evidence that this increase in confidence has a positive effect on participants’ persuasiveness.