This research investigates the relationship between contraceptive self-efficacy and contraceptive use, measured one year later, among adolescent boys and girls. Data are obtained from the two waves of the restricted use sample of the National ...

This study investigates the effects of maternal participation in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) on birth weight, motor and social skills, and temperament for a national sample of children born between 1990 and 1996 to women participating in the...

When people move from one area to another they typically do so in order to raise their incomes. Economists would like to be able to estimate by how much migrants' incomes do in fact increase as a result of their mobility. Comparison of the incomes of migrants with nonmigrants in a cross section...