Over the last decades the German education system underwent numerous reforms in order to improve "equality of opportunity", i.e. to guarantee all pupils equal access to higher education. At the same time internationally comparative evidence yields that Germany features particularly low...

This paper estimates sibling correlations in cognitive and non-cognitive skills to evaluate the importance of family background for skill formation. Based on a large representative German dataset including IQ test scores and measures of non-cognitive skills, a restricted maximum likelihood model...