When children are victims of bullying or social exclusion at school, it can be devastating for every part of their lives. This is a global problem, but with a global solution: if we can teach kids about empathy, self-control, or the effects of their violent behaviour, it can reduce bullying. How well do these policies work, and can they be scaled up successfully? 

JPAL is about to publish a policy insight on this topic, bringing together the research and summarising what we know. Sule Alan of Cornell University tells Tim Phillips about how we can spot bullying and exclusion in the classroom, and the interventions that work.