Do Americans who expect to live longer actually live longer? The answer varies by race and gender. For example, white men on average underestimate their longevity whereas black men overestimate it. Why? Read the full paper here.
Figure: Subjective vs. objective survival among black and white American men, 1937-1941 birth cohort. Actual survival of 1992 survey respondents through 2018 (solid line); subjective survival based on Weibull (dashed line) and Gompertz (dotted line) models.