In 1979, the National Longitudinal Study of Youth 1979 (NLSY79) began following a group of US residents born between 1957 and 1964. It has continued to re-interview these same individuals for more than four decades. Despite this long sampling period, attrition remains modest. This paper shows...

This paper uses massive online genealogy data from the United States over the 19th century to estimate period and cohort-based sex differences in longevity. Following previous work, we find a longevity reversal in the mid-19th century that expanded rapidly for at least a half century. For...