Defined terms for the annuity market and lifetime income landscape.
A cohort effect is a systematic difference in mortality or health experience between successive birth cohorts that persists across the lifespan, distinct from differences associated with age or with calendar period alone.
A cohort life table is a mortality table constructed by following an actual birth cohort across its lifetime, recording the mortality experience that the cohort itself realized at each age it passed through.
Compression of morbidity is the hypothesis, formulated by James Fries in 1980, that increases in lifespan can be accompanied by even larger increases in healthspan, compressing the period of significant illness and disability toward the very end of life.
A disability-adjusted life year is a public-health metric that combines years of life lost to early death and years lost to disability into a single number, used to quantify total disease burden across populations.
An epigenetic clock is a statistical measure of biological age constructed from patterns of chemical modification at specific sites in the genome, calibrated to predict chronological age in reference populations and then used to estimate how much faster or slower an individual is aging than average.
