Mogi, RyoheiLazzari, EsterNisén, JessicaCanudas-Romo, Vladimir2025-03-032025-03-032023Mogi R, Lazzari E, Nisén J, Canudas-Romo V. Cross-sectional average length of life by parity: country comparisons. Popul Stud. 2023 Jan 2;77(1):1-14. DOI: 10.1080/00324728.2022.20498570032-4728http://hdl.handle.net/10230/69769This study aims to present an alternative measure of fertility—cross-sectional average length of life by parity (CALP)—which: (1) is a period fertility indicator using all available cohort information; (2) captures the dynamics of parity transitions; and (3) links information on fertility quantum and timing together as part of a single phenomenon. Using data from the Human Fertility Database, we calculate CALP for 12 countries in the Global North. Our results show that women spend the longest time at parity zero on average, and in countries where women spend comparatively longer time at parity zero, they spend fewer years at parities one and two. The analysis is extended by decomposing the differences in CALPs between Sweden and the United States, revealing age- and cohort-specific contributions to population-level differences in parity-specific fertility patterns. The decomposition illustrates how high teenage fertility in the United States dominates the differences between these two countries in the time spent at different parities.application/pdfeng© 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.info:eu-repo/semantics/articlehttp://dx.doi.org/10.1080/00324728.2022.2049857Fertility by parityMultistate life tableDecompositionFertility measurementCohort analysisPeriod analysisinfo:eu-repo/semantics/openAccess