论文标题
自然种群中寿命不平等的扰动
Perturbations of lifespan inequality in natural populations
论文作者
论文摘要
经常观察到高预期寿命与寿命不平等之间的相关性。最近的一篇文章试图通过提出通过相同重量W（x）对预期寿命和相对寿命平等的死亡率改善图来解释这一现象，并适用于相对寿命平等的额外权重w（x），特定于使用的平等指标。从统计理论来看，人们认为，预期寿命和寿命（IN）平等的变化是出乎意料的。 当前的注释通过表明W（x）upoes（一部分）W（x）来解释这种现象。因此，尽管相对寿命平等的变化与两个权重的乘积W（x）w（x）成正比，但它与w（x）和w（x）均成正比。结果，可以简化一些简化的，可以让位于直观的理解和对提出的扰动分析的更直接解释。
Correlations between high life expectancy and low lifespan inequality are frequently observed. A recent article seeks to explain this phenomenon by proposing that a mortality improvement maps to life expectancy and relative lifespan equality through the same weights w(x), with an extra weight W(x) applied for relative lifespan equality, specific for the equality indicator used. From statistical theory, the claim that changes of life expectancy and lifespan (in)equality map through the same weights is unexpected. The current note explains this phenomenon by showing that W(x) undoes (part of) w(x). Thus, while the change in relative lifespan equality is proportional to the product of both weights, w(x)W(x), it is proportional to neither w(x) nor W(x). As a result, some simplification is possible that gives way to an intuitive understanding and a more direct interpretation of the perturbation analysis proposed.
