This paper highlights changes in employer-based health insurance from 1977 to 1998, based on national household surveys conducted by the Agency for Health Care Policy and Research (AHCPR) in 1977, 1987 and 1996; and surveys of employers by the AHCPR in 1977, by the Health Insurance Association of America in 1988, and by KPMG Peat Marwich/Kaiser Family Foundation in 1998. During the study years, in 1998 dollars, the cast of job-based insurance increased 2.6-fold, and employees' contributions for coverage increased 3.5-fold. The percentage of nonelderly Americans covered by job-based insurance plummeted from 71 percent to 64 percent. This decline occurred exclusively among non-college-educated Americans. An information-based global economy is likely to produce not only greater future wealth but also greater inequalities in income and health benefits.