There is much variation in the physical requirements across occupations, giving rise to great differences in later-life productivity, disability risk, and the value of Social Security Disability Insurance (SSDI). In this paper, I look at how such differences across occupations affect initial...

We present the first estimates of long-run trends in intergenerational relative mobility for samples that are representative of the full U.S.-born population. Harmonizing all surveys that ask about father's occupation and own family income, we develop a mobility measure that allows for the...