Smock and Greenland's work cited in NYT story on nonmarital childbirth
"For Women Under 30, Most Births Occur Outside Marriage" - New York Times. 2/17/2012.
Single poor and minority women used to make up the majority of unmarried mothers. However, couples living together account for much of the recent rise in nonmarital births. And, as Pamela Smock and Fiona Rose Greenland report here, two-thirds of these couples split up in the first decade of their child's life.