Educational Assortative Mating and Income Dynamics in Couples: A Longitudinal Dyadic Perspective
The gender-gap reversal in education could have far-reaching consequences for marriage and family lives. Using data from the National Longitudinal Survey of Youth 1979 and longitudinal multilevel dyad models, this study investigated how educational assortative mating shaped income dynamics in couples over the marital life course. Based on educational assortative mating, couples were grouped into three categories—educational hypergamy (wives less educated than their husbands), homogamy, and hypogamy (wives more educated than their husbands). Results showed that change in husbands’ income with marital duration was similar across couples, whereas change in wives’ income varied by educational assortative mating such that wives in educational hypogamy exhibited more positive change in income over the marital life course. The findings underscored the asymmetric nature of spousal influence and gender change in heterosexual marriages.