Subpopulation Approximation

How it works

Evidence quality

Highlighted claims

• The leading approximation is a female-death-weighted average of the subpopulation differentials. — Observed lifespan differential - global trends, policy impact and computational methods
• The study derived an exact decomposition for a total population made from two non-overlapping subpopulations. — Observed lifespan differential - global trends, policy impact and computational methods
• Synthetic two-country tests supported the practical accuracy of the leading approximation. — Observed lifespan differential - global trends, policy impact and computational methods
• Broader testing would be needed to fully determine when the correction term might become larger. — Observed lifespan differential - global trends, policy impact and computational methods
• The correction term is expected to be small because it combines a small sex-share difference with observed lifespan differences. — Observed lifespan differential - global trends, policy impact and computational methods