The growing complexity of policy decisions in such areas as education and manpower necessitates increased research, which in turn requires an adequate data base and adequate methodology. Recognition that the variables affecting the vocational and educational choices of high school graduates are interrelated and require examination from several points of view is crucial. Two related studies in this area, combined in order to explore these interrelated factors, were conducted using data from the National Longitudinal Survey of the High School Class of 1972. The research strategy adopted uncovered key empirical findings, advanced the methodology in the field while laying the groundwork for further analysis, and brought forth challenges to current federal policies. Three analytical perspectives were used: one oriented to the labor market, a second focused on higher education access and choice, and a third based on relationships between supply and demand in the vocational education market. Several general policy themes run through the work, including the issues of a national youth policy, public investment in education, equity and social integration, occupational information availability, alternative education, and new student populations and life styles. Numerous tables and a substantial bibliography accompany the text. (Author/PGD)