TY - JOUR T1 - Long-Term Impacts of Class Size in Compulsory School JF - Journal of Human Resources JO - J Hum Resour SP - 309 LP - 348 DO - 10.3368/jhr.55.2.0217.8574R2 VL - 55 IS - 1 AU - Edwin Leuven AU - Sturla A. Løkken Y1 - 2020/01/01 UR - http://jhr.uwpress.org/content/55/1/309.abstract N2 - How does class size in compulsory school affect people’s long-run education and earnings? We use maximum-class-size rules and Norwegian administrative registries, allowing us to observe outcomes up to age 48. We do not find any indication of beneficial effects of class-size reduction in compulsory school. For a one-person reduction in class size we reject effects on income as small as 0.12 percent in primary school and 0.15 percent in middle school. Population differences in parental background, school size, or competitive pressure do not appear to reconcile our findings with previous studies. ER -