Workplace injuries and illnesses are an important cause of disability. States have designed their workers' compensation programs to provide cash and medical-care benefits for those injuries and illnesses, but people who become disabled at work may also be eligible for Social Security Disability Insurance (DI) and related Medicare benefits. This article uses matched state workers' compensation and Social Security data to estimate whether workplace injuries and illnesses increase the probability of receiving DI benefits and whether people who become DI beneficiaries receive benefits at younger ages.

This article analyzes the effect of longitudinal interactions between the Disability Insurance (DI) and Supplemental Security Income (SSI) programs in providing access to Medicare and Medicaid, using a sample of administrative records spanning 84 months. Our study is the first effort to link and analyze record data on participation in all four of these major, and highly interrelated, public benefit programs in the United States. We find that SSI facilitates high levels of Medicaid coverage for SSI awardees overall and provides access to Medicaid for many DI awardees during the 24-month Medicare waiting period. Many people who exit SSI retain their Medicaid coverage, but the gap in coverage between continuing SSI participants and those who leave the program increases over time. After Medicare kicks in, public health insurance coverage is virtually complete among awardees with some DI involvement, including dual Medicaid and Medicare coverage for some.

Income typically falls in retirement, and the timing and extent of that decline concerns policymakers. If income from Social Security, pensions, and savings do not allow retirees to maintain their desired standard of living, they will face difficult and perhaps unexpected choices about reducing or eliminating certain kinds of expenditures. The income replacement ratio—retirement income expressed as a percentage of preretirement income—has become a familiar metric for assessing the adequacy of retirement income. This article presents the income replacement ratios experienced by members of the original sample cohort of the Health and Retirement Study (HRS), who were born between 1931 and 1941. Median replacement ratios among this sample fall as the retirement period grows longer.

This article discusses the importance of 401(k)-type defined contribution plans and individual retirement accounts in providing retirement income for current and future retirees. The rising prevalence and importance of this type of income creates measurement errors in the Current Population Survey and other sources of data on the income of the aged because those sources substantially underreport the distributions from such retirement plans.

Applications for Social Security Disability Insurance (DI) increased during the 1990s compared with the 1980s. Over that period, workers' compensation benefits for workers with permanent disabilities declined and compensability rules became more stringent. This article examines whether changes in the workers' compensation program caused part of the increase in the DI application rate during the 1990s.