Considers major social changes that have affected adolescent development in the latter part of the twentieth century, including changes in the labor market, family structure, attitudes toward race and gender, sexuality, mental health, and social exclusion. Suggests ways the behavior and development of young people will change in response. (JPB)

Thirteen papers which analyze the relations of work, schooling and family life in Philadelphia, Pennsylvania, from 1838 to 1920, are provided in this report. The papers (and their authors) are the following: (1) "The Transition to Adulthood Among White Philadelphians, 1850-1880" (Michael B. Katz and John Modell); (2) "Work,…