Peter, Noemi; Lundborg, Petter; Webbink, Herman Dinand - 2015
by parental preferences: if parents prefer certain sex compositions over others, children's gender affects not only the … outcomes of other children but also the very existence of potential additional children. We address this problem by looking at … dizygotic twins. In these cases, the two children are born at the same time, so parents cannot make decisions about one twin …
