, Volume 38, Issue 1, pp 59–66

Increasing fertility in cohabiting unions: evidence for the second demographic transition in the united states?

  • R. Kelly Raley
Fertility models and processes

DOI: 10.1353/dem.2001.0008

Cite this article as:
Raley, R.K. Demography (2001) 38: 59. doi:10.1353/dem.2001.0008


As cohabitation becomes increasingly common and accepted, one might expect the meaning of this arrangement to change. In some countries in Europe (e.g., Sweden), as cohabitation became more prevalent, it moved from a deviant status to an acceptable alternative to marriage. Will the same thing happen in the United States? To investigate this question, I examine increases in the proportion of births occurring in cohabiting unions, using data from the 1987–1988 National Survey of Families and Households (NSFH) and the1995 National Survey of Family Growth (NSFG). The standardization and decomposition procedure shows that most of the growth in the proportion of births to cohabitors is the result of increases in the proportion of women cohabiting, rather than changes in union formation behaviors surrounding pregnancies.

Copyright information

© Population Association of America 2001

Authors and Affiliations

  • R. Kelly Raley
    • 1
  1. 1.Population Research CenterUniversity of TexasAustin