Attention-Deficit/Hyperactivity-Disorder and Human Capital: the Lives of Individuals, Peers, and Families

ADHD is the most common mental health problem among young children. It is well documented that individuals suffering from ADHD have much worse long-term outcomes than others. This project analyses the interplay between ADHD, its treatment, and success in the educational system and on the labour market (human capital). The project considers effects of ADHD on the individual, peers and families. ADHD is estimated to affect about 5 pct. of all children; roughly one child in every class room. Core symptoms are attention deficiencies, hyperactivity and impulsiveness, and children often suffer from other behavioural problems along with depression and anxiety. Hence, ADHD seriously affects one’s capabilities in terms of interacting with others and therefore most likely also success elsewhere. Several randomized controlled studies document that pharmacological treatment is effective in reducing core symptoms. More rarely investigated are the links between ADHD, pharmacological treatment, and human capital. Also, little is known about the effects of school environments, possibly in combination with pharmacological treatment. Furthermore, it is plausible that not only the child himself is affected by his condition and its treatment; effects may also extend to peers (in the classroom) and family (siblings and parents). Very little research investigates how ADHD influences the lives of peers and families. This project will use Danish register based data and surveys to study these questions.