These strategies are (1) reduced or zero inmate admissions, (2) immediate release of some inmates, and (3) a reduction of the average time incarcerated. The usefulness of the quantitative models presented lies in their being able to determine for any one of the strategies the likelihood of obtaining a prescribed reduction in prison population size within a preselected time interval. Parameter values can be changed in the model, allowing examination of a wide range of possibilities. 2 footnotes; 9 references. (Author abstract)