@TechReport{iza:izadps:dp5369,
            	author={Haegeland, Torbjørn and Kirkeboen, Lars and Raaum, Oddbjørn and Salvanes, Kjell G.},
            	title={Why Children of College Graduates Outperform their Schoolmates: A Study of Cousins and Adoptees},
            	year={2010},
	month={Dec},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={5369},
            	url={https://www.iza.org/index.php/publications/dp5369},
	abstract={Massive cross-sectional evidence exists indicating that children of more educated parents outperform their schoolmates. However, evidence for causal interpretation of this association is weak. We examine a causal relationship using two approaches for identification within the same data: cousins with twin parents and adopted children. We find no effect of mothers' education on children's school performance using the children-of-twins approach. However, for adopted children, mother's education has a small positive effect. Tracking the work experience of parents during offspring childhood, we find no support that this effect can be explained by a higher labor force participation among more educated mothers.},
	keywords={education;intergenerational mobility;twin parents;adoptees},
            }