Since 1968 more than thirty-five social policy experiments have been conducted in the United States. During this period through 1976 these experiments were generally long-term, large-scale tests of major new programs; thereafter, experiments became markedly more modest in scope. Although...

Among alternative regulatory responses, information provision programs are receiving increasing attention despite the decidedly mixed evidence about their effectiveness. This paper provides detailed experimental evidence to demonstrate that for one important example of an information program,...

During the past 15 to 20 years a comprehensive services model, incorporating health, social, and educational components, has been the preferred mechanism for addressing the problems associated with adolescent pregnancy. This paper offers an assessment of the model based on a study of ten...