Unveiling the shadows: School bullying and students' ability erosions in Chinese compulsory schools

Drawing upon data from the National Children's Study of China, this research investigates the school bullying victimization and its associations with the ability erosions among students in Chinese schools. Three key findings emerge. First, results suggest that the primary factors affecting bullying victimization mainly include authoritarian parenting, limited positive social interactions on campus, adverse experiences, and exposure to teacher and peer smoking. Second, estimates indicate that bullying victimization is significantly associated with ability erosions, particularly among students from relatively advantaged backgrounds. The further Oster's test, falsification test, and reverse causality check confirm the validity of the associations and suggest some causal effect of victimization on the student outcomes. Lastly, the Oaxaca-Blinder decomposition shows that lower human capital investments derived from social interactions are the most significant contributors to the ability erosion linked to bullying victimization. These findings highlight the critical importance of social interactions both at home and in schools.