This study investigates a neglected determinant of adolescents' dietary behaviors: the within-class age difference, in isolation from confounding factors (e.g., absolute age, season-of-birth, and countries' specific characteristics, such as expected age at school start). We study a multi-country...

We investigate whether relative age (i.e. the age gap between classmates) affects life satisfaction and health in adolescence. We analyse data on students between 10 and 17 years of age from the international survey 'Health Behaviour in School-Aged Children' and find robust evidence that a...