Fertility Dynamics and Life History Tactics Vary by Socioeconomic Position in a Transitioning Cohort of Postreproductive Chilean Women

• DOI: 10.1007/s12110-022-09425-z
• Publication Date: 2022-05-25T07:03:06Z
• Authors: Pablo José Varas ...; Luseadra McKerracher; Nicolás Montalva ...
• Keywords: Position (finance); Life course approach; Dynamics; Life History Theory

Globally, mortality and fertility rates generally fall as resource abundance increases. This pattern represents an evolutionary paradox insofar resource-rich ecological contexts can support higher numbers of offspring, a component biological fitness. has not been resolved, in part because the relationships between fertility, life history strategies, reproductive behavior, socioeconomic conditions are complex cultural-historically contingent. We aim to understand how we might make sense this specific context late-twentieth-century, mid-demographic transition Chile. use distribution-specific generalized linear models analyze associations fertility-related life-history traits-number ages at first last reproduction, average interbirth interval, number live births per span year-and position (SEP) using data from cohort 6,802 Chilean women born 1961 1970. show that SEP have shorter intervals, more year, later age earlier and, ultimately, fewer children than lower SEP. consolidate childbearing over relatively short time middle their careers, whereas tend reproduce entirety lifespans. These patterns may indicate different groups follow pathways toward declining during demographic transition, reflecting trade-offs process.