The Transition Generation’s Entrance to Parenthood: Patterns across 27 Post-Socialist Countries • Sunnee Billingsley, Stockholm University ; Aija Duntava, Södertörn University

A Multilevel Analysis of Spatial Variation in Sex Ratio at Birth in China • Chuncui Fan, University of California, Los Angeles ; Jenn Lee Smith, University of California, Los Angeles

First Births in Europe: Socio-Economic Differentials in the Effect of Economic and Institutional Contexts over the Life-Course • Karel Neels, University of Antwerp ; Jonas Wood, University of Antwerp ; Zita Theunynck, University of Antwerp

A Neighborhood-Centered Approach to Developmental Contexts: An Application to Sexual Risk-Taking in Adolescence and Young Adulthood • Tara D. Warner, University of Nebraska at Lincoln