Public Policy Commons^™

Stochastic Modeling Of Active Life And Its Expectancy, Douglas A. Wolf, Sarah B. Laditka

Center for Policy Research

The concept of “active” (or “disability-free”) life, and its average value, has proven to be a useful index of public health and of quality of life for populations. A question of great interest in recent years is whether recent trends towards longer life expectancy have been accompanied by comparable increases in active life expectancy. Past research on patterns and trends of active and “inactive” life has focused almost exclusively on the expectancy—or, the average value—of years spent with and without disability. This measure is useful for actuarial calculations, for example analysis of the insurance value of programs that provide long-term …