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Original ArticleWith the advent of Obergefell v. Hodges in 2015, same-sex marriages are legal across the United States, and in some states, same-sex marriages and other governmentally recognized unions were legal several years prior. Levels and patterns of the stability of this relatively new type of union are not well understood. While some studies have shown that samesex unions are at higher risk of dissolution compared to malefemale unions, others have found similar dissolution rates for same-sex and male-female unions. A common finding across the literature, however, is that female-female unions in particular are less stable than their male-male or male-female counterparts. It is unclear, however, whether this gendered difference in union stability is found for both cohabiting and formalized unions (i.e., marriage, domestic partnership, or civil union). Additionally, the mechanisms underlying the relative instability of female-female unions remain unexplained.This article seeks to compare the stability of male-male, female-female, and male-female couples in both cohabitational and formalized unions, exploring the interaction effects between the gender composition and the formal union status of couples. While the literature on this topic has divergent findings, each study has approached this issue in a slightly different way, some investigating only cohabitational unions or only formal unions and some considering same-sex couples as a single group rather than separating male-male and female-female unions, for example. Using recent longitudinal data from coupled individuals, we separate male-male, female-female, and male-female couples as well as cohabitational and formalized unions to provide an understanding of similarities and differences in stability between couple types. We find that all cohabitational unions experience the same risk of union dissolution and that all formalized unions have a lower risk of dissolution compared to their cohabitational peers. However, we find that formalized female-female unions have higher risk of union dissolution compared to formalized male-male and male-female unions. This article also seeks to shed light on mechanisms that drive this difference in stability.
AbstractFindings on comparative couple stability between same-sex and male-female unions vary, with some studies finding similar dissolution rates among same-sex and male-female unions and others finding higher rates of dissolution among same-sex unions. The authors extend previous research by examining the association between gender composition of couples and dissolution patte...