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 ...

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...