We report results from a large-scale, pre-registered randomized field experiment in 159 Norwegian schools over four years. The intervention includes students aged 7-9 and consists of pulling students from their regular mathematics classes into small, homogenous groups for mathematics instruction...

Studies have shown that a lack of adult supervision of school-aged children is associated with antisocial behavior and poor school performance. To mitigate this, one policy response is to provide structured, adult-supervised programs offered after school throughout the academic year....

Studies have shown that a lack of adult supervision of school-aged children is associated with antisocial behavior and poor school performance. To mitigate this, one policy response is to provide structured, adult-supervised programs offered after school throughout the academic year....

Recent research suggests that using additional teachers to provide small-group instruction or tutoring substantially improves student learning. However, treatment effects on test scores can fade over time, and less is known about the lasting effects of such interventions. We leverage data from a...

We report results from a large-scale, pre-registered randomized field experiment in 159 Norwegian schools over four years. The intervention includes students aged 7-9 and consists of pulling students from their regular mathematics classes into small, homogenous groups for mathematics instruction...

We investigate the effects of a large-scale Norwegian reform that provided extra teachers to 166 lower secondary schools with relatively high student-teacher ratios and low average grades. We exploit these two margins using a regression discontinuity setup and find that the reform reduced the...

We investigate the effects of a large-scale Norwegian reform that provided extra teachers to 166 lower secondary schools with relatively high student-teacher ratios and low average grades. We exploit these two margins using a regression discontinuity setup and find that the reform reduced the...

Genetic endowments are fixed at conception and matter for the educational attainment of individuals. Do investments in schooling environments mitigate or magnify the outcomes of this genetic lottery? Using data from a representative sample of US adolescents, we analyse the interdependent...

Converging labor market opportunities of men and women have altered the economic incentives for how families invest monetary and time resources into the skill development of their children. In this paper, I study the causal impact of changes in the parental wage gap (PWG)—defined as the...

Are the United States still a land of opportunity? We provide new insights on this question by invoking a novel measurement approach that allows us to target the joint distribution of income and wealth. We show that inequality of opportunity has increased by 77% over the time period 1983-2016....