Workers’ compensation is one of the few State-administered income-maintenance programs operating throughout the United States. The national “system” that provides medical care and income-maintenance protection to workers disabled from workrelated injuries or illnesses actually consists of 50 independent State operations and several special Federal programs. The Social Security Administration (S...

The following article, first published as Actuarial Study No. 99, describes the population projections that underlie the long-range cost estimates for the Old-Age, Survivors, and Disability Insurance (OASDI) program, which are included in the 1987 Report of the OASDI Board of Trustees. The projections start from a recent estimate of the population in the Social Security Area by age, sex, and ma...