Cohort Survival is also known as which demographic concept?

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Cohort survival is conveyed by the population pyramid. A population pyramid shows the age and sex distribution of a population at a single point in time, with each horizontal bar representing the number of people alive in a given age group. This visualization reflects how birth cohorts survive across ages: the width of each bar indicates how many from that cohort remain as people age, revealing mortality patterns and past fertility. A broad base with a gradual taper upward suggests many births and good survival, while a rapid narrowing with age highlights higher mortality in older ages. The other terms refer to different ideas—demographic dividend discusses potential economic gains from age structure, an age-structure index is a numeric measure of distribution, and growth accounting relates to decomposing economic growth—not the visual portrayal of surviving cohorts.