Using detailed Danish administrative data covering the entire population of students entering higher education in the period 1985 to 2010, we investigate the importance of a student's peers in higher education for the decision to drop out. We use high school GPA as a predetermined measure of...

Prior research has shown that time spent in school does not close the achievement gap between students with low and high socioeconomic status (SES). We examine the effect of combining increased instruction time with information to teachers about their students' reading achievements by using a...

We estimate the effect of school size on students' long-term outcomes such as high school completion, being out of the labor market, and earnings at the age of 30. We use rich register data on the entire population of Danish children attending grade 9 in the period 1986-2004. This allows us to...

We investigate the effects of the introduction of a population-wide Human Papillomavirus (HPV) vaccination program on the vaccine take-up of the targeted group of 15-year-old girls and their older sisters. For identification, we rely on a regression discontinuity design and high-quality Danish...

We exploit variation stemming from school consolidations in Denmark from 2010- 2011 to analyze the impact on student achievement as measured by test scores. For each student we observe enrollment and test scores one year prior to school consolidation and up to four years after. We find that...

We exploit variation stemming from school consolidations in Denmark from 2010-2011 to analyze the impact on student achievement as measured by test scores. For each student we observe enrollment and test scores one year prior to school consolidation and up to four years after. We find that...

Prior research has shown that time spent in school does not close the achievement gap between students with low and high socioeconomic status (SES). We examine the effect of combining increased instruction time with information to teachers about their students' reading achievements by using a...