Peter, Noemi; Lundborg, Petter; Webbink, Dinand - 2015
We examine how the gender of a sibling affects earnings, education and family formation. Identification is complicated … by parental preferences: if parents prefer certain sex compositions over others, children's gender affects not only the … dizygotic twins. In these cases, the two children are born at the same time, so parents cannot make decisions about one twin …