PT - JOURNAL ARTICLE AU - Xu, Di AU - Zhang, Qing AU - Zhou, Xuehan TI - The Impact of Low-Ability Peers on Cognitive and Non-Cognitive Outcomes: Random Assignment Evidence on the Effects and Operating Channels AID - 10.3368/jhr.57.2.0718-9637R2 DP - 2020 Mar 09 TA - Journal of Human Resources 4099 - http://jhr.uwpress.org/content/early/2020/03/03/jhr.57.2.0718-9637R2.short 4100 - http://jhr.uwpress.org/content/early/2020/03/03/jhr.57.2.0718-9637R2.full AB - This article presents new experimental estimates of the impact of low-ability peers on own outcomes using nationally representative data from China. We exploit the random assignment of students to junior high school classrooms and find that the proportion of low-ability peers, defined as having been retained during primary school (“repeaters”), has negative effects on non-repeaters’ cognitive and non-cognitive outcomes. An exploration of the mechanisms shows that a larger proportion of repeater peers is associated with reduced after-school study time. The negative effects are driven by male repeaters and are more pronounced among students with less strict parental monitoring at home.