Patterns of lowest-low fertility in Europe

In this paper we conduct descriptive aggregate analyses to revisit the relation between low and lowest-low period fertility on the one, and cohort fertility and key fertility-related behaviors---such as leaving the parental home, marriage and female labor force participation---on the other side. First, we identify a systematic pattern of lowest-low fertility that is characterized by a rapid delay of childbearing, a low progression probability after the first child (but not particularly low levels of first-birth childbearing), and a ``falling behind´´ in cohort fertility at relatively late ages. Second, our analyses show that the cross-country correlations in Europe between the total fertility level on the one side, and the total first marriage rate, the proportion of extramarital births and the female labor force participation rate on the other side have reversed during the period from 1975 to 1999. At the end of the 1990s there is also no longer evidence that divorce levels are negatively associated with fertility levels. Based on these analyses we conclude that the emergence of lowest-low fertility during the 1990s has been accompanied by a disruption or even a reversal of many well-known patterns that have been used to explain cross-country differences in fertility patterns.Europe, family formation, fertility

The impact of union formation dynamics on first births in West Germany and Italy: are there signs of convergence?

In this paper we investigate the changing impact of union formation on the transition to parenthood in West Germany and Italy using FFS data. We first draw attention to overall cohort patterns in union formation and first births and then describe the mutual relationships between union formation, first marriage, and first births. On the basis of event-history models, we then evaluate the impact of union formation behaviour on the transition to motherhood. In particular, we test whether the impact of union status has been changing for younger and older cohorts, thereby investigating whether the heterogeneous spread of non-marital childbearing is gaining relevance as we would expect from the perspective of the Second Demographic Transition. The findings from these analyses allow us to conclude that demographic behaviour is not converging from a cohort perspective. (AUTHORS)Germany/FRG, Italy

Crew training program for LTA-8 thermal vacuum test

Crew training program for lunar module thermal vacuum testin

Social Networks, HIV/AIDS and Risk Perceptions

Understanding the determinants of individuals’ perceptions of their risk of becoming infected with HIV and their perceptions of acceptable strategies of prevention is an essential step towards curtailing the spread of this disease. We focus in this paper on learning and decision-making about AIDS in the context of high uncertainty about the disease and appropriate behavioral responses, and we argue that social interaction is an important determinant of risk perceptions and the acceptability of behavioral change. Using longitudinal survey data from rural Kenya and Malawi, we test this hypothesis. We investigate whether social interactions—and especially the extent to which social network partners perceive themselves to be at risk –exert causal influences on respondents’ risk perceptions and on one approach to prevention, spousal communication about the threat of AIDS to the couple and their children. The study explicitly allows for the possibility that important characteristics, such as unobserved preferences or community characteristics, determine not only the outcomes of interest but also the size and composition of networks. The most important empirical result is that social networks have significant and substantial effects on risk perception and the adoption of new behaviors even after controlling for unobserved factors.health, AIDS, information, social networks, Africa

High development and fertility: fertility at older reproductive ages and gender equality explain the positive link

A fundamental reversal of the traditional fertility-development relationship has occurred in highly developed countries so that further socioeconomic development is no longer associated with decreasing fertility, but with increasing fertility. In this paper, we seek to shed light on the mechanisms underlying this reversal by analyzing data from 1975 to 2008 for over 100 countries. We find that the reversal exists from both the period and the cohort perspectives, and is mainly driven by increasing fertility at older reproductive ages. Further, the reversal is only partially explained by changes in the timing of fertility. However, the positive impact of development on fertility is conditional on gender equality: countries that rank high in development as measured by health, income, and education, but low in gender equality, continue to experience declining fertility. This finding demonstrates the importance of work-family balance in shaping fertility at older reproductive ages.World, developed areas, equal opportunity, fertility, gender, low fertility zones