@TechReport{iza:izadps:dp8823,
            	author={Kristoffersen, Jannie H. G. and Kraegpøth, Morten Visby and Nielsen, Helena Skyt and Simonsen, Marianne},
            	title={Disruptive School Peers and Student Outcomes},
            	year={2015},
	month={Jan},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={8823},
            	url={https://www.iza.org/index.php/publications/dp8823},
	abstract={This paper estimates how peers' achievement gains are affected by the presence of potentially disruptive and emotionally sensitive children in the school-cohort. We exploit that some children move between schools and thus generate variation in peer composition in the receiving school-cohort. We identify three groups of potentially disruptive and emotionally sensitive children from detailed Danish register data: children with divorced parents, children with parents convicted of crime, and children with a psychiatric diagnosis. We find that adding potentially disruptive children lowers the academic achievement of peers by about 1.7-2.3 percent of a standard deviation.},
	keywords={student mobility;special educational needs;education;value added model},
            }