There is sustained and widespread interest in understanding the limit, if there is any, to the human life span. Apart from its intrinsic and biological interest, changes in survival in old age have implications for the sustainability of social security systems. A central question is whether the...

This reflexion provides two mathematical proofs for Equation (1) in Feeney (2006), published in this journal as 14-2.

Negative senescence is characterized by a decline in mortality with age after reproductive maturity, generally accompanied by an increase in fecundity. Hamilton (1966) ruled out negative senescence: we adumbrate the deficiencies of his model. We review empirical studies of various plants and...

Forecasts are always wrong. Still, they paint potential future scenarios and provide a platform for policy decisions today. This is what gives forecast such a high salience in political debates about the effects of population aging. The paper aims at gauging the effect of population aging on...

Die Corona-Pandemie und die politischen Entscheidungen zu ihrer Eindämmung verändern derzeit die Situation vieler Erwerbstätiger in Deutschland. Auf Grundlage einer ersten Tranche einer Zusatzbefragung (SOEP-Cov) von Haushalten des Sozio-oekonomischen Panels (SOEP), werden hier die...

The corona pandemic and the political measures undertaken to contain it are changing the working conditions of many people in Germany. Based on data from the first tranche of a supplementary survey (SOEP-Cov) to the German Socio-Economic Panel (SOEP), this study analyzes the effects of the...

Summary We introduce a selection model-based multilevel imputation approach to be used within the fully conditional specification framework for multiple imputation. Concretely, we apply a censored bivariate probit model to describe binary variables assumed to be missing not at random. The first...