Paradox lost: Explaining the hispanic adult mortality advantage

We tested three competing hypotheses regarding the adult "Hispanic mortality paradox": data artifact, migration, and cultural or social buffering effects. On the basis of a series of parametric hazard models estimated on nine years of mortality follow-up data, our results suggest that the "Hispanic" mortality advantage is a feature found only among foreign-born Mexicans and foreign-born Hispanics other than Cubans or Puerto Ricans. Our analysis suggests that the foreign-born Mexican advantage can be attributed to return migration, or the "salmon-bias" effect. However, we were unable to account for the mortality advantage observed among other foreign-born Hispanics.     

Fraught with Ambivalence: Reproductive Intentions and Contraceptive Choices in a Sub-Saharan Fertility Transition

Demographic studies that search for signs of fertility transition in sub-Saharan Africa rarely examine the complex gamut of individual aspirations and misgivings, hopes and frustrations, failures and triumphs that accompany the emerging declines of fertility rates in the subcontinent. This study draws upon qualitative data collected in peri-urban areas of Maputo, Mozambique’s capital and largest metropolis, to explore contradictory meanings and feelings surrounding changes in fertility intentions and contraceptive choices. It argues that although changes in these two aspects of reproductive life are interrelated, they are predicated on distinct types and configurations of external pressures and psychological apparatus, which is often manifested as a puzzling disjunction between fertility preferences and contraceptive use. This disjunction can be further reinforced by persistent gender divisions in reproductive views and strategies. Informal social interaction plays an important role in building societal consensus over fertility matters, but because such interaction deals with reproductive intentions and contraceptive use through largely different mechanisms, it may also help accentuate the intentions-contraception disjunction. This study’s findings therefore call upon both researchers and policymakers to attend more closely to the multidimensionality of fertility transitions in sub-Saharan societies and specifically to the complexities underlying such popular notions as “unmet need for family planning,” “spacing” versus “limiting” births, or “spousal communication” on reproductive matters.     

Population Scenarios Based on Probabilistic Projections: An Application for the Millennium Ecosystem Assessment

Probabilistic population forecasts offer a number of advantages to users. However, in some cases population is one component of a larger analysis that may take a different approach to uncertainty. For example, integrated assessments of environmental issues such as climate change or ecosystem degradation have typically used a small number of alternative scenarios to explore uncertainty in future environmental outcomes. In such cases, population projections that are provided only as probability distributions are difficult to use. I present a method of employing probabilistic population projections to derive individual, deterministic projections that can be used within scenarios for integrated assessments. The principal advantages of this approach are that (1) it provides a less ad hoc way of defining deterministic projections intended to be consistent with more comprehensive scenarios that describe, among other things, future socio-economic developments; (2) it provides more flexibility in specifying input assumptions for deterministic projections as compared to choosing off-the-shelf projections, allowing population assumptions to be tailored to the scenario; and (3) it provides a quantitative assessment of the uncertainty associated with any given deterministic projection. I describe the application of the method to the development of population projections used in integrated scenarios for the Millennium Ecosystem Assessment, an international scientific effort to assess the current conditions of and future outlook for global ecosystem goods and services. Results show that the MA scenarios are each consistent with a relatively wide range of demographic outcomes. For some scenarios, ranges of plausible outcomes in some regions overlap substantially, indicating that particular population projections could be consistent with more than one scenario. In other cases, uncertainty ranges for different scenarios are distinct, indicating that a projection consistent with one scenario is unlikely to be also consistent with another. Comparing variances of the conditional projections also provides insight into how much different storylines constrain future demographic developments. The development of the MA projections points to important areas of future research on correlations among demographic rates and on uncertainty across scales. It also serves as an illustration of how probabilistic and alternative scenario-based approaches to uncertainty can be combined within a single integrated analysis.This revised version was published online in April 2005 with corrections to figures 1-3.     

An Investigation into the Cross-Cultural Equivalence of the Personal Wellbeing Index

The Personal Wellbeing Index (PWI) is being developed for the cross-cultural measurement of subjective wellbeing (SWB). This paper reports the findings of its utility with the Hong Kong Chinese and Australian populations. An item on affect, ‘satisfaction with own happiness’ was also investigated to determine whether it should be added to the index. Three-hundred and sixty participants (180 per country), with equal representation from groups aged 18–35, 35–64 and 65 years and above, were recruited from each country. The PWI demonstrated good psychometric performance in terms of its reliability, validity and sensitivity, which are comparable in both countries. The item ‘satisfaction with own happiness’ was found to contribute significantly to the scale’s psychometric performance in Australia but not in Hong Kong. Cultural differences in the perception of the concepts ‘satisfaction’ and ‘happiness’ were suggested as an explanation for this finding. The PWI data are also consistent with homeostasis theory, which proposes that each person’s SWB level is maintained within a limited positive range. For the Australian population, their mean SWB level fell within the established Western range of 70–80, on a scale from 0 to 100. The Hong Kong population, however, fell below this range. Cultural response bias was identified as a plausible explanation for the differences between the Hong Kong and Australian samples.     

Cognitive Models of Fertility Decline in Oaxaca City,Mexico

This paper presents a systematic analysis of the culture of natality. In the first section, I present an extended definition of culture informed by cognitive anthropology and evolutionary biology. I argue that culture is an adaptation and a virtual environment with which humans must interact in order to survive and reproduce in a given physical environment. In the second section, I present a qualitative and quantitative analysis of qualitative interview data collected in Oaxaca City, Mexico, on reproductive behavior. The analysis examines evidence of cultural differences and similarities. I conclude by discussing implications for a theory of fertility decline.     

Premarital childbearing in Thamaga Village,Botswana

This paper examines the diminished importance of marriage as a setting for childbearing in Botswana. It uses qualitative data gathered in Thamaga Village during 1995 to explore the cultural basis of this development. Marriage practices and traditional attitudes to marriage, childbearing and sexual relations are reviewed, and factors identified as having undermined them are discussed. Rational adaptation theory and social disorganization theory then provide a framework within which forces encouraging premarital childbearing in Thamaga are investigated. Both theories are found to be useful. Especially where women are older, premarital childbearing is often strategic and goaldirected, providing a sense of self-worth, labour and old-age security. In many other cases, however, it reflects spontaneous sexual activity generated by the undermining of social controls and inauspicious economic circumstances. Societal attitudes to premarital motherhood become less condemnatory after about age 25, as women are judged to have waited long enough for marriage.     

Determinants of family migration: short moves vs. long moves

This paper examines factors underlying family migration. Based on a sample of stable Finnish families, both short- and long-distance migration is investigated. The empirical analysis carried out using multinomial logit modelling shows a strong negative association between the family life-cycle and migration. The findings indicate that migration takes place mainly due to the demands of the husbands career, resulting in the wives being tied migrants. Two-earner families are less migratory, and in that sense the husbands are tied stayers. Distance matters; several differences are noticed between short- and long-distance migrants.Financial support from the Yrjö Jahnsson Foundation (project no. 4271) is gratefully acknowledged. I would like to thank two anonymous referees for their helpful comments on this paper. I also wish to thank Kari Hälänen, Sari Pekkala and Hannu Tervo for their comments on an earlier version of this paper. Responsible editor: John F. Ermisch.