Volume 39 - Article 48 | Pages 1305–1330 Author has provided data and code for replicating results

Order matters: The effect of premarital pregnancy on second childbearing in Japan

By Fumiya Uchikoshi, Ryohei Mogi

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Date received:23 Nov 2017
Date published:19 Dec 2018
Word count:5858
Keywords:bridal pregnancy, Japan, second birth
DOI:10.4054/DemRes.2018.39.48
Additional files:readme.39-48 (text file, 3 kB)
 demographic-research.39-48 (zip file, 129 kB)
 

Abstract

Background: Although nonmarital childbearing is uncommon in Japan, in contrast to the trends observed in other countries, the number of premarital pregnancies has increased. While prior studies have examined the determinants of premarital pregnancy, little is known about its consequence on individuals’ subsequent childbearing.

Objective: The aim of this study is to investigate the effect of premarital pregnancy on a second childbirth in Japan.

Methods: We use Japanese General Social Survey Life Course Study data, which covers women ages 28–42 in 2007. We use discrete time logistic regressions to estimate the individual risk of experiencing a second childbirth. Additionally, because being pregnant before marriage occurs selectively depending on individual demographic characteristics, we attempt to balance the propensity to experience premarital pregnancy by using propensity score matching.

Results: The results reveal that experiencing premarital pregnancy causes a higher likelihood of second childbirth at earlier and later ages, defined as month at risk starting from one year after the first birth.

Conclusions: Our results support the life course change hypothesis. This predicts that premarital pregnancy, which is highly likely to be unintended, increases the risk of bearing a second child, possibly by relatively reducing both women’s attachment to paid employment and the opportunity cost of having a second child.

Contribution: Premarital pregnancy may affect women’s subsequent life course through the influence of the strong linkage between marriage and fertility and the Japanese work culture. The results could be applicable to other East Asian countries.

Author's Affiliation

Fumiya Uchikoshi - Princeton University, United States of America [Email]
Ryohei Mogi - University of Oxford, United Kingdom [Email]

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