A “daddy day”? More time to spend at home? Men don’t need to work part-time to ensure their well-being. In fact, they are happier if they “just” work full-time. This is one conclusion of the PhD research by sociologist Sean de Hoon who examined the influence of family relationships and parenthood on differences in happiness, income and health. De Hoon obtained his PhD on Thursday 13 April at Erasmus University Rotterdam. His research was funded by the NWO Research Talent programme.