Three models for calculating college student retention rates and predicting enrollments are examined: (1) the Cohort Ratio Model; (2) the Longitudinal Persistence Model; and (3) the Markov Process Model. The last is seen as more encompassing, with wider applicability range, and useful in tracking student change in major and movement in and out of…

International migration is presented as a permanent phenomenon. Historical changes in migration patterns are traced; and different types of immigration policies, and current and future trends are reviewed. Open and unrestricted immigration is a thing of the past, but selective, and illegal, immigration will continue. (SLD)