An empirical question that has motivated demographers is whether there is convergence or
divergence in mortality/longevity around the world. The epidemiological transition is the …

Everyone has a chronological age. Because survivorship declines relentlessly in
populations with age-specific death rates greater than zero, everyone also has a …

Human longevity leaders with remarkably long lifespan play a crucial role in the
advancement of longevity research. In this paper, we propose a stochastic model to describe …

The progressive incorporation of quality of life indicators in health planning meets a critical
need: The evaluation of the performance of health services, which are under stress by …

A key but unresolved issue in the study of human mortality at older ages is whether mortality
is being compressed (which implies that we may be approaching a maximum limit to the …

We suggest a novel method for detecting mortality deceleration by adding a penalty to the
log-likelihood function in a gamma-Gompertz setting. This is an alternative to traditional …

In recent years, the importance of describing mortality at the limits of the life span has led to
a number of relevant and controversial studies. Whereas considerable efforts have been …

Abstract Automatic Adjustment Mechanisms (AAMs) are legal instruments that help social
security systems respond to demographic and economic changes. In Brazil, the Social …

Accurate age data is fundamental to medicine, social sciences, epidemiology, and good
government. However, recent and heavily disputed debates on data quality have raised …

We focus on the gamma-Gompertz-Makeham model, and derive useful structural properties
for this mortality model. We provide the basic properties like moments, remaining life …