This study proposes a new decomposition method which permits a difference in an aggregate measure at a final time point to be split into additive components corresponding to the initial differences in the event-rates of the measure and differences in trends in these underlying event-rates. The...

This study examines the variation in mortality and mortality trends among different regions in India since the 1970s using data from the Sample Registration System (SRS). Evaluation of the SRS data quality confirms reliability for children and adults under the age of 60 years. Analysis of...

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Patterns of diversity in age at death are examined using e†, a dispersion measure that also equals the average expected lifetime lost at death. We apply two methods for decomposing differences in e†. The first method estimates the contributions of average levels of mortality and mortality...

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The conception of the cost of reproduction provides an important insight on connection between fertility and life span in living organisms. Despite substantial progress in understanding this connection many important features of fertility-longevity trade-off are masked by confounding factors,...

Competing views exist concerning the impact of geographical mobility on childbearing patterns. Early research shows that internal migrants largely exhibit fertility levels dominant in their childhood environment, while later studies find migrants’ fertility to resemble more closely that of...

A growing body of literature looks at the consequences of family migration from a gender perspective. The studies show that women’s economic well-being and employment suffer from family migration, which is usually stimulated by the career of the male earner in the family. This study extends...

We study inter-individual variability in number of children among women. Concentration ratio (CR) and percentile measures are used. In most countries CR has increasing from cohorts of the 1930s-40s onward due to rise in childlessness. In cohorts of the early 1960s CR varies from 0.24 to 0.46...

As one aspect of the complex feature of longevity, gene-sex interaction plays an important role in influencing human life span. With advances in molecular genetics, more studies aimed at assessing gene-sex interaction are expected. New and valid statistical methods are needed. In this paper, we...