Patent US 4,787,036

Data processing for an improved student population maintenance system for educational institutions predicts number of students for a target year, costs for target year, revenues for target year, tuition charges for a target year, marginal costs for each student in a target year, checks for internal accuracy and consistency compared to predetermined norms, calculates "scholarship" fee for prospective students at present value, checks for statistical validity. On a periodic basis, e.g. daily, present value of future tuition is recomputed to determine new scholarship fee for particular institution. Brokerage system for several institutions is also disclosed.