This paper investigates the interrelationship between states and families. At different levels of organization, both play a large role in shaping the context in which individuals live their lives. Yet when it comes to understanding key demographic events in the ancient Mediterranean world –...

We study prediction and error propagation in Hernes, Gompertz, and logistic models for innovation diffusion. We develop a unifying framework in which the models are linearized with respect to cohort age and predictions are derived from the underlying linear process. We develop and compare...

With an emphasis on how weight stigma is manifested in social relationship context, this study explores two under-studied consequences of adolescent overweight, timing of first sex and subsequent intimate relationship development. The data employed come from Waves I to III of the National...

We introduce a new class of models in which demographic behavior such as fertility is postponed by differing amounts depending only on cohort membership. We show how this model fits into a general framework of period and cohort postponement that includes the existing models in the literature,...

In this paper, I re-introduce the Gompertz model of age-specific fertility. This model has been rejected by past authors as fitting poorly to cross-sectional, or period rates. However, I find that the model fits very well to recent medium and low fertility cohort schedules in France, Italy, and...

This paper shows new evidence of a steady long-term decline in age of male sexual maturity since at least the mid-eighteenth century. A method for measuring the timing of male maturity is developed based on the age at which male young adult mortality accelerates. The method is applied to...

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This paper is concerned with sensitivity analysis of life disparity with respect to changes in mortality rates. Recently Zhang and Vaupel introduced a ”threshold age”, such that averting deaths before that age reduces disparity, while averting deaths after that age increases disparity. We...

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,...

The main purpose of this paper is to report on an initial validation of methods for dealing with micro-census data with no delineated households. After describing the 1819 census of Rostock we test the possibilities of using an algorithm that creates households according to a strictly defined...