摘要：Background : Intergenerational coresidence has important consequences for care provision for the young and the old. Given the rising concerns related with population aging in South Korea, understanding intergenerational coresidence is of great relevance. Objective : This research sought to describe evolving intergenerational coresidence patterns in South Korea between 1980 and 2015, through the lens of fertility decline, increased life expectancy, and changing marriage patterns. Methods : Korean census 1% micro data were used to describe changing co-residence patterns, and Sullivan’s method was used to estimate length and proportion of intergenerational coresidence. Results : Coresidence with parents decreased over time due to an increase in the proportion of old people. After controlling for age structure, the prevalence of parent coresidence increased due to a reduction in sibling size and delay in marriage. Coresidence with children changed little due to a decrease in the proportion of young people. After controlling for age structure, the prevalence of child coresidence decreased substantially due to fertility decline and delay in marriage. Whereas the proportion of lifetime coresidence with parents decreased modestly between 1980 and 2015, the proportion of lifetime coresidence with children almost halved. Conclusions : As the nuclear family becomes the dominant family household form, multi-generational coresidence becomes less common. Demographic changes partly offset the trend of decreasing parent coresidence but amplify the trend of decreasing child Coresidence. Contribution : This research shows the importance of demographic changes for changing family configurations in South Korea. Fertility decline and rising longevity, as well as familial changes, affect the patterns of intergenerational coresidence.
