Rekodi ya ushahidi wa mbinu

Keyfitz Entropy

Keyfitz's entropy, usually written H, is a dimensionless summary of a life table that measures how sensitive life expectancy is to a proportional change in mortality, and equivalently how unequal the distribution of ages at death is. Introduced by Nathan Keyfitz, it is the elasticity of life expectancy at birth with respect to the force of mortality: an H near one means deaths are spread across all ages so that reducing mortality everywhere lengthens life proportionally, while an H near zero means deaths are concentrated near the maximum lifespan so further mortality reductions yield little gain. It bridges the demography of survival and the broader study of lifespan inequality.

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Rekodi ya chanzo

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Keyfitz's Life-Table Entropy (H)

Rekodi ya mbinu ya kiajenda · process-pipeline / demography

Keyfitz, N. (1977). Applied Mathematical Demography. John Wiley & Sons, New York. · ISBN 9780471473503
Demetrius, L. (1979). Relations between demographic parameters. Demography, 16(2), 329–338. · DOI 10.2307/2061146

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Used in the same domainLee-Carter Modelmachine-suggested · Relational suggestion, not evidence.Used in the same domainLife Tablemachine-suggested · Relational suggestion, not evidence.Same method familyLifespan Inequalitymachine-suggested · Relational suggestion, not evidence.Used in the same domainStable Population Theorymachine-suggested · Relational suggestion, not evidence.