Over the last 25 years, the Social Security Disability Insurance Program (DI) has grown dramatically. During the same period, employment rates for men with work limitations showed substantial declines in both absolute and relative terms. While the timing of these trends suggests that the...

[...]This paper is an interim report on continuingwork that we began in 1988. Our earlier research on thecauses of wage structure changes in the 1980s (Bound andJohnson 1992) showed that part of explanation A (theslowdown in the growth rate of that fraction of the workforce with high levels of...