Life expectancy versus lifespan inequality: A smudge or a clear relationship?
نویسنده
چکیده
Interest in inequality, including lifespan inequality, is growing. Several studies, using various measures of variation in the length of life, reveal that as life expectancy increases, lifespan inequality tends to decrease, albeit with considerable variation across populations and over time. The aim of this article is to understand why the strength of the relationship between life expectancy and lifespan inequality varies across publications. Results differ in large part because they are based on different data sources. In addition, some measures show more smudginess than others. All the analyses presented here support the basic finding of a strong relationship between life expectancy and lifespan inequality.
منابع مشابه
Divergence in age patterns of mortality change drives international divergence in lifespan inequality.
In the past six decades, lifespan inequality has varied greatly within and among countries even while life expectancy has continued to increase. How and why does mortality change generate this diversity? We derive a precise link between changes in age-specific mortality and lifespan inequality, measured as the variance of age at death. Key to this relationship is a young-old threshold age, belo...
متن کاملTrends in Life Expectancy and Lifespan Variation by Educational Attainment: United States, 1990–2010
The educational gradient in life expectancy is well documented in the United States and in other low-mortality countries. Highly educated Americans, on average, live longer than their low-educated counterparts, who have recently seen declines in adult life expectancy. However, limiting the discussion on lifespan inequality to mean differences alone overlooks other dimensions of inequality and p...
متن کاملIncreasing inequality in age of death at shared levels of life expectancy: A comparative study of Scotland and England and Wales
There is a strong negative correlation between increasing life expectancy and decreasing lifespan variation, a measure of inequality. Previous research suggests that countries achieving a high level of life expectancy later in time generally do so with lower lifespan variation than forerunner countries. This may be because they are able to capitalise on lessons already learnt. However, a few co...
متن کاملThe Effect of Income Distribution on life expectancy and under-5 mortality rate in Iran
Health can affects human abilities, functions and even his life quality, and hence has important role in determination of human capital through production processes. The aim of this study is to examine the effect of income inequality on selected health indices in Iran during 1976-2007. In this study an attempt has been made to analyze the relationship between income inequality and the both of ...
متن کاملHow have trends in lifespan variation changed since 1950? A comparative study of 17 Western European countries
Lifespan variation adds to life expectancy by measuring the inequality surrounding age of death that a population faces. Countries that tackle premature mortality generally have decreasing lifespan variation but this is the first study to compare and statistically assess when and to what extent trends in lifespan variation have changed across Western Europe. Lifespan variation was measured usin...
متن کامل