Training measures in the U.S. National Longitudinal Survey of Young Men, the National Child Development Study for Britain, and the Australian Longitudinal Survey of Youth were used to study determinants and labor market outcomes of postschool training received by young men. Twelve percent of U.S. youth reported getting formal training in the first year, compared with between 30 and 40 percent of nonapprentice males in Britain and Australia. As they acquired work experience, a high proportion of U.S. youth reported receiving training, whereas job training in Britain and Australia proceeded at a slower pace. U.S. employers provided workers with company-based training; British and Australian employers relied on outside training sources. Level of schooling attainment was an important predictor of postschool training and labor market success. For all three countries, better-educated youth were considerably more likely to get training. Rapid technical changes increased the likelihood of getting company training, especially for youth with the most education. In all three countries, union membership was associated with an increased probability of training, and company-based training had by far the largest quantitative influence on raising youth wages. Other training benefits were employability and job stability. Wage effects of formal training in the United States were roughly twice those in Britain and Australia. (32 references) (YLB)