Educational Careers and Delayed First Sexual Intercourse: The Italian Paradox • Francesco C. Billari, Max Planck Institute for Demographic Research ; Maria Castiglioni, University of Padova ; Dalla Zuanna Gianpiero, University of Padua ; Marzia Mancin, University of Padova

Why Do Some Adolescents Have Risky Sex? The Role of Family Background, Childhood Behaviors, and Adolescent Relationships • Elizabeth Cooksey, Ohio State University ; Frank Mott, Ohio State University ; Darcy W. Hango, Ohio State University

Can Changes in Sexual Behaviors among High School Students Explain the Decline in Teen Pregnancy Rates in the 1990s? • John S. Santelli, U.S. Centers for Disease Control and Prevention (CDC) ; Joyce C. Abma, National Center for Health Statistics, Centers for Disease Control and Prevention ; Stephanie Ventura, National Center for Health Statistics, Centers for Disease Control and Prevention ; Laura Lindberg, Urban Institute

Adolescent Reproductive Health in Japan: Demographic and Policy Dimensions • Ryuzaburo Sato, National Institute of Population and Social Security Research, Japan