The last 60 years have seen the emergence of a dramatic socioeconomic gradient in marriage, divorce, cohabitation, and childbearing. The divide is between college graduates and others: those without four-year degrees have family patterns and trajectories very similar to those of high school...

Fathers' multiple-partner fertility (MPF) is associated with substantially worse educational outcomes for children. We focus on children in fathers' “second families” when the second families are nuclear families – households consisting of a man, a woman, their joint children, and no other...