Traditionally, the most commonly used methods of forecasting school enrollments have been those that looked to the past for a picture of the future. In restricting the forecaster to projections of past trends, the "percentage survival" technique ignores a host of current trends implicit in a changing society. A second problem with most…

This publication discusses the difficulties of calculating reliable income estimates for particular groups of people and presents a methodology for overcoming those obstacles. Basically, the procedure involves setting up cumulative distributions of housing values, rental values, and family incomes for each census tract. Average housing values and…