This paper provides evidence of a novel facet of peer effects by showing how peer personality affects educational achievement. We exploit random assignment of students to university sections and find that students perform better in the presence of more persistent peers and more risk-averse peers. In particular, low-persistence students benefit from highly-persistent peers without devoting additional efforts to studying. However, highly-persistent students are not affected by the persistence of their peers. The personality peer effects that we document are distinct from other observable peer characteristics and suggest that the personality traits of peers causally affect human capital accumulation.

中文翻译：

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同伴性格对学业成绩的影响

本文通过展示同伴个性如何影响教育成就，为同伴效应的一个新方面提供了证据。我们利用学生随机分配到大学部分，发现学生在更持久的同龄人和更厌恶风险的同龄人面前表现更好。尤其是，低毅力的学生受益于高毅力的同龄人，而无需付出额外的努力来学习。然而，高度坚持的学生不会受到同龄人坚持的影响。我们记录的人格同伴效应不同于其他可观察的同伴特征，并表明同伴的人格特征会因果地影响人力资本积累。