Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Using data on multiple cohorts of Italian students we investigate how the ordinal rank in the within-school-cohort age distribution affects the probability of being bullied (age rank effect). Identification is achieved exploiting variation in the age composition of different school cohorts, and through an IV strategy based on the discontinuity in the probability of enrolling in a given school year generated by an end-of-year cut-off rule. We find that a one-decile increase in the within-school-cohort age distribution decreases the probability of being victimized by about one percentage point. Age rank effects are stronger when calculated within groups defined by observable characteristics.