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Rapid population aging and increasing racial/ethnic and immigrant/native diversity make a broad documentation of U.S. health patterns during both mid- and late life particularly important.
The paper is motivated by the need for improved social evaluation of prospective demographic change in order to better inform policies that are designed to reduce the very long-run costs of popula...
We present a list of important mathematical relationships that govern populations in which individuals differ from each other in unobserved ways. For some relationships we present proofs that, albei...
To develop a matrix model to compute all the statistical properties of longevity from the gamma-Gompertz and related models.
Referring to the multidisciplinary and multipurpose survey AKeA2, and focusing on family genealogy data on centenarian women and controls, this paper aims to verify the hypothesis that maternal lo...
The accurate measurement of migrant remittances is central to understanding both the dynamics and the consequences of migration. Empirical studies rely on survey data about remittances, which are ...
A number of studies have examined the influence of life conditions in infancy (and pregnancy) on mortality risks in adulthood or old age. For those individuals who survived difficult life conditio...
Background: Half a century ago Strehler and Mildvan (1960) have published the seminal paper that, based on some assumptions (postulates), theoretically 'justified' the Gompertz law of mortality.Object...
While return migration is receiving increasing attention, there is still insufficient insight into the factors which determine migrants’ intentions and decisions to return. It is often assumed tha...
The postponement of partnership formation and parenthood in the context of an early average age at leaving home has resulted in increased heterogeneity in the living arrangements of young adults i...
A striking fact in human population history is the reversal of the relationship between income and fertility. In order to reveal the causes of the reversal, this paper estimates Easterlin’s supply-d...
Since the beginning of the twentieth century, important transformations have occurred in the age-at-death distribution within human populations.
Arguments about the spread of gender egalitarian values through a population highlight several sources of change. First, structural arguments point to increases in the proportion of women with hig...
Durham, NC - In a long-term study of interactions between chimpanzees in the famous Gombe National Park in Tanzania, researchers have found that males who consistently bully females tend to father mor...
基于1989~2011 年30 个省份的数据,以老年人口比重和老少比两种指标,采用Dagum基尼系数和Kernel 密度估计方法,对中国人口老龄化的空间非均衡及分布动态演进进行实证研究,结果表明: 第一,利用GIS 绘制的老年人口比重和老少比的分布图直观地展示出中国人口老龄化空间分布存在显著的空间非均衡特征,具体表现为中、西部地区老龄化程度低而东部地区老龄化程度高的梯度分布态势。第二,基尼系数测算...

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