Using data from Monitoring the FutureStudy that include 31 cohorts of high school seniors (1976 to 2006) who were followed from ages 19-30, weidentified heterogeneity in union formation trajectories andits covariates (cohort, sex, race/ethnicity, and parental education). We identified nine trajectorieswith approximately 40% following a single to married sequence (with variation in the timing of the sequence), about 35% remaining single, and the remaining respondents showing considerable heterogeneity.Recent cohortswere more likely to remain single and experience more transitions, women made earlier transitions, and Blackrespondents were less likely to follow pathways entailing marriage.

Living-apart-together (LAT) partnerships are gaining prominence in many high-income societies, prompting ongoing discussions about their significance and their role in the family formation process. This study provides a contemporary update on LAT relationships in Spain, with a specific emphasis on variations across different life stages. The study focuses on several key aspects: (1) recent trends in the prevalence of LAT relationships, (2) socio-demographic factors associated with being in a LAT relationship, (3) joint influence of both partners\' characteristics, and (4) short-term intentions to co-reside. Using data from the 2018 Spanish Fertility Survey, we employ logistic regression models to analyze the factors influencing individuals\' likelihood of being in a LAT relationship as opposed to a co-residential partnership. Our findings reveal a noticeable rise in LAT partnerships in Spain over the past two decades, except among the youngest age group. Personal motivations and socially attributed meanings of LAT relationships, however, differ depending on an individual\'s life stage. Among young adults, LAT partnerships largely serve as a transitional phase in the family formation process, preceding co-residence with a partner. In this early adulthood stage, unemployment and temporary work contracts - affecting any of the partners - often hinder household formation, but intentions to co-reside in the near future remain strong. In contrast, LAT partnerships in the mid-life stage often stem from a desire to maintain personal independence and are frequently linked to prior partnership and reproductive biographies.

Developments over time in the prevalence of marriage and cohabitation formation has long received much interest, but less is known about more recent developments for different population subgroups in European countries. This applies as well to Sweden, a country considered a forerunner in family-demographic change. In contrast, much attention has been paid to the falling birth rates during the 2010s, and explanations that focus on the role of increasing uncertainties. In the Swedish case, the fertility decline has been documented across all main socio-demographic subgroups. The objective of this study is to examine whether the same situation holds for first marriage and cohabitation formation during the 2010s and the exceptional years of the Covid-19 pandemic. Based on Swedish population registers, including with new cohabitation data, we present annual indices of first marriage formation (1991-2022) and cohabitation formation (2012-2022) across a number of socio-demographic strata. We demonstrate a continuous decline in first marriage formation since the early 2010s with an additional sharp dip during the pandemic and a post-pandemic recovery. In contrast, there was a remarkable stability in cohabitation formation during 2012-2022. Although socio-demographic groups differ in their overall levels of marriage and cohabitation formation, the recent trends are strikingly similar across groups. Cohabiting couples, across population subgroups, have become less inclined to transition their union status to a more committed level, as manifested by marriage or parenthood. This occurred in spite of a positive economic climate in the 2010s and stable family policies, indicating that other forces are at play.

Cohabitation and marriage are critical milestones during the transition to adulthood; however, there is limited research on the timing of young adults\' first same-sex unions. There is some evidence that same-sex unions may be delayed, particularly for men. Further, formation of both same- and different-sex dating relationships, common among sexual minority young adults, may also extend to cohabitation and marriage. We used the National Longitudinal Study of Adolescent to Adult Health to predict the timing of a first romantic union, defined as a cohabitation or marriage, among sexual minority young adults. We then distinguished between women and men and the timing of a different-sex versus a same-sex union. Compared with heterosexual young adults, lesbian and gay young adults entered a union at later ages (driven by men), whereas bisexual young adults entered a union at younger ages (driven by women). Lesbian and gay young adults who entered a first union with a same-sex partner did so at later ages than those who entered a first union with a different-sex partner. Results suggest that patterns of sexual minority dating relationship formation might extend to unions.

Rising employment uncertainty featured by higher risks of being temporarily employed or unemployed is often seen as the driving force behind delayed and declined partnering in Western countries. However, such an employment-partnering relationship is contextualized by labour market institutions and thus could diverge across countries over time. This paper aims to investigate how country-level variations in labour market regulations moderate individual-level effects of unstable employment on union formation, including the transitions into marriage or cohabitation unions. Using comparative panel data for 26 countries from the European Union Statistics on Income and Living Conditions (the years 2010-2019), our multilevel fixed effects models showed that temporary employment and unemployment negatively affected the probability of union formation for single women and men in Europe. Moreover, the negative relationship between unstable employment and union formation was reinforced when labour market reforms were stimulating insider-outsider segregations or decreasing welfare provisions. Specifically, stricter employment protection legislations and higher coverage rates of collective bargaining agreements could reinforce the negative effects of temporary employment and unemployment on union formation, while more generous provisions of unemployment benefits could buffer such negative effects.

Substantial changes in residential transitions and family formation patterns have been observed in Western societies, but less attention has been paid to the de-standardisation of adulthood pathways in East Asian contexts, where unique social, economic and cultural circumstances may produce diverse trajectories that are less explored in existing theoretical and empirical frameworks. Adopting a life course perspective, this study identifies the multi-trajectories of housing, partnering and childbearing across adulthood in Taiwan, a setting marked by high housing costs and low fertility rates. Data from the Taiwanese Panel Study of Family Dynamics 2000-2020 (N = 6,931) were used for group-based trajectory modelling, and mixed-effects multinomial regression was employed to examine the likelihood of group membership given early-life resources and social origin. Six common housing-partnering-childbearing trajectories were identified. The most prevalent living arrangement was living in parental homes (50.7%), followed by rental homes (25%), self-owned homes (15.5%) and dorms or other (8.8%). Union formation generally precedes childbearing, whereas housing transitions may occur at various time points. Young adults\' home-leaving and homeownership access appear to be closely related to their parental backgrounds, such as their parents\' educational attainment and occupational status. Overall, the findings are consistent with the de-standardisation of pathways to adulthood, demonstrating the diversity in adult trajectories and the lack of a single dominant pattern.

Studies on global changes in families have greatly increased over the past decade, adopting both a country-specific and, more recently, a cross-national comparative perspective. While most studies are focused on the drivers of global changes in families, little comparative research has explored the implications of family processes for the health and well-being of children. This study aims to fill this gap and launch a new research agenda exploring the intergenerational implications of union-formation and within-couple dynamics for children\'s health and well-being across low- and middle-income countries (LMICs), both globally, regionally, and by the stage of fertility transition. We do so by adopting a macro-level perspective and a multi-axis conceptualization of children\'s outcomes - health at birth, health in later life, and schooling - and leveraging Demographic and Health Survey and World Bank data across 75 LMICs. Our results show that in societies where partnerships are characterized by more equal status between spouses - i.e., where the age range between spouses and differences in years of schooling between partners are narrower - children fare better on several outcomes. These associations are particularly strong in mid- and high-fertility settings. Despite a series of regularities, our results also highlight a set of findings whereby, at a macro-level, the prevalence of marriage and divorce/separation are not invariably associated with children\'s outcomes, especially in LMICs where fertility is comparatively lower. We document little cross-regional heterogeneity, primarily highlighting the centrality of demographic factors such as age vis-à-vis, for instance, region-specific characteristics that are more tied to the social fabric of specific societies.

In this paper, we explore the patterns of assortative mating among college-educated women who graduated from typically female, typically male, or mixed disciplines. Using a set of cross-sectional observations of a single cohort of female graduates (2010) from European Union Labour Force Survey data and applying multilevel multinomial logit models, we estimated the relative risk of living with a college-educated partner (homogamy), living with less educated partner (hypogamy), or being single. Focusing on the first five years after graduation, the analysis demonstrated that field of study is a significant predictor of mating behaviour. Women with degrees in male-dominated fields are less likely to partner down with less educated men. The mating advantage of women from male-dominated fields is stronger in countries with a higher female employment rate. Furthermore, more liberal gender roles seem to increase the level of singlehood among women from male-dominated fields. Finally, women from female-dominated and mixed disciplines are more likely to partner down if the man graduated from a male-typical discipline. However, among women from male-dominated disciplines, such a trade-off was not observed.

This paper explores how attitudes towards childbearing change after cohabitation and marriage. Entering in a union may affect attitudes towards childbearing, but at the same time individuals who are more oriented towards childbearing may be more determined to form unions. In order to disentangle the interplay between union formation and subsequent changes in attitudes towards childbearing we implement propensity score matching, which is applied to a panel data coming from a survey in Bulgaria to identify the effect of union formation on attitudes related to childbearing. This method controls for observable confounders which may affect both the probability of entering into a union and childbearing preferences, reducing selection bias. We find a positive and significant causal relationship of entering into union on attitudes towards parenthood among men, whereas the effect is weaker and often uncertain for women.

This study investigates partnership transitions of young adults born between 1974 and 1990 in England and Wales. These cohorts were affected by the expansion of higher education, increasing gender equality, and ideational changes, but faced increased economic precarity caused by the economic and housing crisis. Given these changes, it is likely that the partnership experiences of young adults including marriage, cohabitation, separation, and repartnering have also undergone considerable changes. We apply competing risks event history analysis to combined data from the British Household Panel Survey and the UK Household Longitudinal Study to determine how birth cohort, gender, socio-economic background, and educational attainment influence partnership changes. We study the transition into and out of first cohabitation and marriage and repartnering between age 16 and 27. Cohabitation has become a universal form of first union among young adults born in the late 1970s and 1980s regardless of their socio-economic background or educational level, but their first unions do not last long. While cohabiters are equally likely to marry or separate in the oldest cohort (1974-1979), cohabiting unions are very likely to end in separation among the two youngest cohorts (1980-1984 and 1985-1990). Consequently, repartnering has become common; those in the youngest cohort repartner rather quickly suggesting that an increasing number of individuals experience multiple partnerships. Highly educated young adults have higher rates of entry into first cohabitation than their lower educated counterparts across all cohorts. However, we do not find differences in cohabitation outcomes by socio-economic background and educational level indicating that the main changes have taken place across birth cohorts. The results also suggest that there is a convergence in partnership experiences among young men and women. The increased prevalence of sliding into and out of cohabitation could indicate significant changes in the meaning young people attach to first partnerships.