Using data from the first Census data set that includes complete measures of male biological fertility for a large-scale probability sample of the US population (the 2014 wave of the Study of Income and Program ParticipationN = 55,281), this study shows that:
high income men are more likely to marry, are less likely to divorce, if divorced are more likely to remarry, and are less likely to be childless than low income men. Men who remarry marry relatively younger women than other men, on average, although this does not vary by personal income. For men who divorce who have children, high income is not associated with an increased probability of having children with new partners. Income is not associated with the probability of marriage for women and is positively associated with the probability of divorce.
High income women are less likely to remarry after divorce and more likely to be childless than low income women. For women who divorce who have children, high income is associated with a lower chance of having children with new partners, although the relationship is curvilinear.
These results are behavioral evidence that women are more likely than men to prioritize earning capabilities in a long-term mate and suggest that high income men have high value as long-term mates in the U.S.
[Keywords: evolutionary psychology, fertility, marriage, childlessness, divorce, sex differences]
