A general algorithm for the decomposition of differences between two values of an aggregate demographic measure in respect to age and other dimensions is proposed. It assumes that the aggregate measure is computed from similar matrices of discrete demographic data for two populations under...

In their recent ASR article on the sex composition of previous offspring and third births in the US, Pollard and Morgan (2002) argue that changes in the societal gender system - namely increasing opportunities for women - have lead to a decreasing effect of children´s gender on parents´...

Adult mortality decline was the driving force of life-expectancy increase in many developed countries in the second half of the twentieth century. In this paper we study one of the most widely used models to capture adult human mortality - the Gompertz proportional hazards model. In its standard...

The tendency of women to outlive their own fertility has been explained allometrically, with age at reproductive cessation attributed to ovarian follicle depletion in allometrically appropriate ovaries, and longevity related to brain and body scaling. However, because women's age at reproductive...

Females in all mammalian species care for their offspring, while most mammalian males do not. This failure of paternal investment is generally explained in terms of a trade-off between paternal care and mating competition. While there has been great interest in the optimal pattern of investment...

This paper analyzes the relationship between children’s day care and fertility in Germany. First, different modes of childcare are discussed with regard to their availability and costs. We then estimate the impact of having access to public day care and care in social networks on first birth...

In this paper, we present a system of descriptions of family-demographic behavior in developed countries. We use life-table techniques in order to describe the experiences of men, women, and children in processes related to family formation and family dissolution. We develop a large number of...

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In this paper, a multilevel approach is used to investigate whether and how regional social contexts influence first and second birth probabilities of women living in western Germany during the 1980s and 1990s. In the theoretical part it is argued that regional opportunity structures as well as...

In this paper, we present an investigation of patterns in childbearing among foreign-born women in Sweden from the early 1960s and onwards. It is performed in a similar way as a previous study by the author who analyzed childbearing patterns of Swedish-born women in that country by applying...