“…Such concern has motivated research on the underlying determinants of teenage women's sexual activity, contraceptive use, and fertility. Studies have investigated, for example, the role of young women's family background, welfare generosity, and abortion provider availability on the likelihood of nonmarital teenage pregnancy and whether such pregnancies result in abortion, marital birth, or nonmarital birth (e.g., Cooksey, 1990;Lundberg and Plotnick, 1995).…”