Lifetime Parenthood in the Context of Single- and Multiple-Partner Fertility
The proportion of life spent caring for dependent children is a defining feature of life courses. This study analyzes the period of life spent as parents to children no older than 18 as a salient difference between single- and multiple-partner fertility trajectories. Individuals who have children with more than one partner spend a much longer time as parents to dependent children than those who have children with one partner, on average 8.2 more years among men and 6.2 more years among women. Cross-partner birth spacing is a more powerful proximate cause of this gap than completed fertility. The association is not confounded by social origins. Among those who have children with more than one partner, the number of years spent as parents varies slightly by socioeconomic position: high income earners on average spend one more year as parents than low income earners.