There is more and more empirical evidence to show that highly skilled people are an important determinant of economic growth. Consequently, policy-makers are eager to keep their graduates in the region or attract graduates from elsewhere. It is also well known that people with a higher level of education exhibit high rates of spatial mobility. Much less is known about mobility patterns according to discipline and academic grade. Do the best people stay or leave, and does this vary according to discipline and type of region? This paper investigates the relationship between ability, field of study and spatial mobility using a micro-dataset on Dutch university and college graduates. The findings indicate that there are substantial net flows ma...