Gender, union formation, and assortative mating among older women.

This paper presents a search-theoretic model of union formation among women, aged 55 and older. Specifically, it provides new estimates of gender differentials in cohabitation and marriage at older ages, and documents recent patterns of assortative mating using data from the 2008-2017 American Community Survey. Our analyses reveal that cohabitation represents a much smaller share of all older unmarried women, all partnered women, and all women in comparison to patterns observed among their male counterparts. The results also reveal highly uneven patterns of union formation by age, race and marital history, which reflect demographically uneven constraints and preferences. Our analyses also document, for the first time, patterns of assortative mating at older ages. Shortages of similarly-aged men, especially among older African American women, seemingly heighten the likelihood of demographically mismatched unions. Older women are less likely to form unions with same-race or economically attractive partners, defined as men having a college-degree. This study shows that older single women, in general, are at a comparative disadvantage in the marriage market, both in forming co-residential unions and in finding partners who match their own social, demographic, and economic profiles. This paper highlights considerable heterogeneity in the experiences of America's older women. It calls for new theoretical approaches that acknowledge the unequal resources and bargaining power among older women in the marriage market.