Fertility and patterns of labor force participation among married women

Abstract

Past research has shown that the labor market behavior of wives is discontinuous and affected by family events. Specifically, both cross‐sectional and panel data indicate that fertility decreases the period that a married woman spends working. Each birth appears to decrease labor force participation by one year or more. The present study attempts to specify these effects more completely. The variation in work patterns for each parity progression is examined to determine whether the fertility‐work effect is due to a few women who leave the labor force for an extended period during childbearing or due to a large number of women who have intermittent work histories. The analysis uses a national sample of women who were high school sophomores in 1955 and followed up as adults in 1970 and for whom retrospective data for each of the intervening years were obtained. Only married women with uncomplicated marital histories are included in the present study. We find dramatic evidence for two distinct types of response to childbearing. Women tend either to work almost continuously throughout the period or to drop out of the labor force for a very extended period of time after first birth.     

Kuru: An appraisal of five years of investigation

Abstract

Socioeconomic determinants of fertility and mortality were estimated by regression analysis for 29 low‐migration SMSA's located in the eastern part of the U. S. A low‐migration sample was chosen to maximize length of life history within the regions. Independent variables included per cent nonwhite, gross and net migration, population, density, medical care, welfare, per cent Catholic, education, income, and labor force participation. Density was measured by an index based on the census inventory of urban land. Mortality results include effects of migration on older nonwhite life expectancy, an inverse effect of density on life expectancy for older whites, specific income and educational effects on older life expectancies, different causative factors for e(50) and e(1,50), lack of influence of medical care (except for the nonwhite male), and significant infant mortality multiple correlations only for the nonwhite female. For nonwhite fertility, the inverse influences of per cent nonwhite and net migration 1960–70 were of greatest importance. White fertility showed a negative relationship with medical care and a positive one with nonwhite male e(0).     

Women's role orientations and expected fertility: Evidence from the Detroit area, 1978

Abstract

The paper investigates whether there is empirical evidence to support the hypothesis that women's attitudes toward traditionally female family roles affect their expected fertility net of the much‐discussed link between women's employment and fertility. Along with several socio‐demographic variables, the study uses a nonwork related attitude variable comprised of a motherhood role attitude measure and a housekeeping attitude measure. The study uses a probability sample of white, fecund, once‐married women under 35 living with their husbands in the Detroit Metropolitan Area in 1978. Findings suggest that nonwork related attitudes have a significant effect on fertility expectations net of labor force participation. They also suggest that general fertility surveys could benefit from including questions on nonwork related role orientations.     

Assessing the correlates of desired family size in Shaanxi,China

Abstract

This exploratory analysis of factors associated with Chinese women's fertility desires uses data on married women between the ages of 18 and 35 who live in Shaanxi Province, China. Analyses using an economic framework found that both rural and urban couples who intended to sign, or who had already signed, the one‐child certificate reported wanting significantly fewer children. However, in rural areas (where 80 per cent of the provincial population lives), education level, living arrangements, participation in an arranged marriage, attitudes regarding the ideal age for marriage, and knowledge of the reasons for the government's fertility policies appear to play a relatively larger role in shaping fertility preferences.     

Political efficacy and interest as mediators of expected political participation among Belgian adolescents

Abstract

Citizenship education intends to prepare students to become politically active citizens. However, studies investigating the relationship between citizenship education and political participation have largely neglected the mediating role of political attitudes. This study examines whether political efficacy and political interest are mediators of expected political participation, using the data of the Belgian (Flemish) sample of the ICCS 2016 study. The results indicate that three educational strategies (i.e., classroom discussions, civic learning opportunities, and student participation at school) are positively associated with expected political participation (i.e., institutionalized and noninstitutionalized participation) in a distinct way. A substantial part of this relationship is mediated by political interest and political efficacy. Future research should take this underlying mechanism into account when studying the development of civic engagement amongst adolescents in a school context. The findings of this study call for a broad approach to citizenship education for the development of political attitudes, as well as behavior.     

A follow‐up study of intrauterine contraceptive devices: An Indian experience

Abstract

Evidence suggests that in contemporary Africa, and probably in the predemographic transition periods of many other populations, desired fertility typically exceeds (or exceeded) achieved fertility and completed family size. The main conceptual approaches employed by economists during the past two decades for the analysis of the determinants of fertility are reviewed and found inadequate because most fail to address circumstances in which demand or desired fertility exceeds supply or actual fertility. An alternative conceptual framework is offered incorporating both demand and supply determinants. Results from numerous studies of African and other populations are found to be consistent with this approach. Data from Tanzania are described and analyzed. Implications of this micro‐level conceptual approach for macro‐level fertility change are suggested.     

Institutional patterns favoring high fertility in underdeveloped areas

Abstract

Data presented indicate that the sex ratio of the Navajo Tribe has shifted since the 1940's and now shows a preponderance of women rather than men. The reasons for this shift, which roughly parallel a similar shift in the general population of the United States, are : (1) a decline in maternal mortality rates; (2) an increase in male mortality rates, particularly from accidents; and (3) greater out‐migration of men than women. Some of the consequences of the changing ratio include: increasing proportion of young widows with dependent children; a growing desire for labor force participation on the part of women; out‐marriage of Navajo women; and, in the future, the probable isolation of elderly widows who may become the responsibility of social welfare agencies.     

Childlessness: A panel study of expressed intentions and reported fertility

Abstract

The present research focuses on childed versus childless intentions and subsequent behavior and intentions for a panel of U. S. women. Utilizing data from the 1970 and 1975 National Fertility Surveys (reinterviewed women), we ascertain the consistency between intentions (1970) and behavior and intentions (1975). We find that while women who expressed a zero parity intention in 1970 were very consistent in their behavior and intentions in 1975, nearly 30 per cent of those women intending children had no children by 1975. Furthermore, of these 30 per cent, one‐third had changed their intention to zero parity by 1975. We find that changing intentions from more than zero to zero is associated with higher levels of education, slightly higher income, and to a lesser degree with the importance given religion and with labor force participation.     

Uterine Synchronization Analysis During Pregnancy and Labor Using Graph Theory,Classification Based on Neural Network and Deep Learning

1) ObjectivesPreterm birth caused by preterm labor is one of the major health problems in the world. In this article, we present a new framework for dealing with this problem through the processing of electrohysterographic signals (EHG) that are recorded during labor and pregnancy. The objective in this research is to improve the classification between labor and pregnancy contractions by using a new approach that focuses on the connectivity analysis based on graph parameters, representative of uterine synchronization, and comparing neural network and machine learning methods in order to classify between labor and pregnancy.2) Material and methodsafter denoising of the 16 EHG signals recorded from pregnant women abdomen, we applied different connectivity methods to obtain connectivity matrices; then by using the graph theory, we extracted some graph parameters from the connectivity matrices; finally, we tested different neural network and machine learning methods on the features obtained from both graph and connectivity methods in order to classify between labor and pregnancy.3) ResultsThe best results were obtained by using the logistic regression method. We also evidence the power of graph parameters extracted from the connectivity matrices to improve the classification results.4) ConclusionThe use of graph analysis associated with machine learning methods can be a powerful tool to improve labor and pregnancy classification based on the analysis of EHG signals.     

Depression and labor supply: Evidence from the Netherlands

We estimate the relationship between depression and labor-market outcomes using data from the Longitudinal Internet studies for the Social Sciences (LISS) panel (2008 — 2018) from the Netherlands. The paper provides three main findings. First, depression is not associated with women’s labor market participation, but it is associated with their likelihood of having paid employment (conditional on being in the labor force). Second, depression is associated with men’s labor force participation, likelihood of having paid employment and likelihood of working full time. Third, severity of depression matters. More severe symptoms are associated with more adverse labor-market outcomes. In addition, we examine the mechanism behind the relationship between depression and labor market outcomes. We find that happiness, life satisfaction, and pessimistic beliefs about the future are partially mediating the effects.     

Transitions in fertility for Brazilian women: an analysis of impact factors

The labor participation of Brazilian women has increased during the last few decades. According to the World Bank, the percentage of Brazilian women participating in the labor market rose from 20% in the early 1970s to 65% (for women between 16 and 64 years of age) in 2009. The fertility profile has also changed, the fertility rate has decreased from 6.2 in 1960 to 1.9 in 2009, below the replacement rate, according to the World Bank. This paper will present Brazilian fertility trends during the previous (20(th)) and present (21(st)) centuries and, emphasize the importance of individual profiles for fertility decisions. This work uses Brazilian data from PNAD (Pesquisa Nacional de Amostra por Domicilios) to understand the cause of this relationship and to predict the consequences of these choices on women's economic development.     

Social and biological determinants of age at first marriage in Taiwan, 1970

Abstract

This study examines the social and biological determinants of age at first marriage in two townships in northern Taiwan, one very rural and traditional and the other urban and modernized. For a sample of 5,707 once‐married women a path analysis was performed in which age at first marriage was considered a function of age, educational attainment, urban origin, premarital labor‐force participation, and age at menarche. Age at menarche, with a positive effect on the dependent variable, was the most important direct cause of age at first marriage. Although exogenous variables associated with modernization (urban origin, educational attainment and younger age) had a positive direct effect on age at first marriage, they also had a negative indirect effect on age at first marriage through their negative direct effect on age at menarche.     

Oxytocin hypersensitivity in pregnant P-LAP deficient mice

AimsOxytocin (OT) is the strongest uterotonic substance and has been used widely to induce labor. The physiological importance of OT in modulating the initiation and progression of labor remains unclear. In this study, we showed the roles of OT with onset of labor and also the arginine vasopressin (AVP) effect on urine volume in vivo using both wild type (WT) and placental leucine aminopeptidase (P-LAP)-deficient (KO) mice.Main methodsOT (1, 2, 2.5 U/day) or recombinant P-LAP (0.01 U/day) was continuously infused from gestation day 15.5 in WT and P-LAP KO mice. Duration until onset of labor was observed. Before and after administration of AVP (1 U/day) in WT and P-LAP KO mice, urine volume was measured.Key findingsA significant shortening of pregnancy term was observed in P-LAP KO mice. Continuous infusion of OT (1 U/day) revealed that P-LAP KO mice resulted in premature delivery (OT hypersensitivity). We could observe a significant decrease of urine volume in P-LAP KO mice by administration of AVP. Administration of recombinant P-LAP in WT mice resulted in the delay of the onset of labor about 1.5 days compared with control mice.SignificanceOur present study shows that the regulation of the onset of labor mainly depends on OT and its degradation by P-LAP and also the possible role of P-LAP in the regulation of urine output. P-LAP might be involved in the increased OT sensitivity just prior to onset of labor and also in the onset of labor by degradation of OT.     

Ecological determinants of divorce: A structural approach to the explanation of Japanese divorce

Abstract

This paper examines the ecological determinants of contemporary Japanese divorce rates on the prefectural level. LISREL and computer‐generated graphics are the analytic methods used. The aggregate level of analysis demands the use of the ecological model which posits that demographic changes, economic activities, migration patterns, and the level of urbanization are significant predictors of divorce rate. Our analysis demonstrates that sex ratio, female labor force participation, female in‐migration patterns, population increase, and net household income all play a significant role in affecting the divorce rate. Our findings also confirm the well‐supported hypothesis that both population density and modernization positively influence modern Japan's divorce rates. The residual analysis also points out that in order to account for the large proportion of the unexplained variance of Japanese divorce, behavioral‐related variables and island‐ or prefecture‐specific dimensions need to be included in the ecological model of divorce.     

Projection of the Mexican National Labor Force, 1980–2005

Abstract

Mexico has a large and rapidly growing labor force. This paper projects the Mexican national labor force from 1980 to 2005, with varying assumptions of vital rates, economic activity, and international migration. Projections are also made for the urban and rural components of the Mexican population, assuming inter‐component migration flows. Results indicate that the Mexican labor force will grow over the projection period at an average annual rate of 907,000 to 1,183,000 workers; will age slightly; and will have a much higher proportion female. Implications are discussed in terms of Mexican‐U.S. migration, possible agreements on free trade, and global trends in workforce.     

A regression approach to the projection of U.S. fertility based on past fertility data

Abstract

The method of fertility projection used by the U.S. Bureau of the Census involves assumptions about the ultimate cohort total fertility rate and the ultimate cohort mean age at childbearing based on recent levels of fertility and women's birth expectations. This paper provides an outline of a general regression approach to fertility projection based on past data which would generate these two ultimate cohort characteristics. The technique is illustrated by using the U.S. single‐year age‐specific fertility rates up to 1986 for total women and projecting them indefinitely into the future until they become stable for both calendar years and cohorts.     

Ecological strategies in California chaparral: interacting effects of soils,climate, and fire on specific leaf area

Background: High values of specific leaf area (SLA) are generally associated with high maximal growth rates in resource-rich conditions, such as mesic climates and fertile soils. However, fire may complicate this relationship since its frequency varies with both climate and soil fertility, and fire frequency selects for regeneration strategies (resprouting versus seeding) that are not independent of resource-acquisition strategies. Shared ancestry is also expected to affect the distribution of resource-use and regeneration traits.

Aims: We examined climate, soil, and fire as drivers of community-level variation in a key functional trait, SLA, in chaparral in California.

Methods: We quantified the phylogenetic, functional, and environmental non-independence of key traits for 87 species in 115 plots.

Results: Among species, SLA was higher in resprouters than seeders, although not after phylogeny correction. Among communities, mean SLA was lower in harsh interior climates, but in these climates it was higher on more fertile soils and on more recently burned sites; in mesic coastal climates, mean SLA was uniformly high despite variation in soil fertility and fire history.

Conclusions: We conclude that because important correlations exist among both species traits and environmental filters, interpreting the functional and phylogenetic structure of communities may require an understanding of complex interactive effects.     

Barriers to Social Participation among Lonely Older Adults: The Influence of Social Fears and Identity

IntroductionLoneliness among older adults is a major public health problem that may be associated with processes of social participation and identity. This study therefore sought to examine the relationship between social participation and identity in a sample of lonely older adults living independently in London, England.MethodAn inductive qualitative approach, based on semi-structured interviews and thematic analysis, was employed.ResultsParticipants commonly spoke of barriers to social participation that have been reported elsewhere, including illness/disability, loss of contact with friends/relatives, lack of a supportive community, and lack of acceptable social opportunities. However, novel findings were also derived. In particular, participants commonly minimised the difficulties they faced alone, and described attempts to avoid social opportunities. These behaviours were linked to fears about engaging in social participation opportunities, including fears of social rejection and/or exploitation, and fears of losing valued aspects of identity.DiscussionIt is concluded that social participation amongst lonely older people will not improve through the removal of previously reported barriers alone; instead, older peoples’ beliefs, fears and identities must be addressed. Suggestions for implementing these findings within community organisations are provided.     

The influence of female education,labor force participation,and age at marriage on fertility behavior in Bangladesh

Abstract

This paper studies the relationship between three aspects of female status (education, work experience, and age at marriage) and the use of contraception and fertility in Bangladesh. Education is found to be the variable most strongly correlated with use of contraception and is also one of the significant variables explaining fertility behavior. The most important factor explaining fertility behavior is age at marriage. The higher the age at marriage, the lower the fertility, when all other factors are held constant. Work experience has very little or no effect on current use of contraception and fertility.     

Realización de actividades y extraversión como variables predictoras del bienestar psicológico en personas mayores

IntroductionThe relationship between extraversion and wellbeing has been discussed in the literature, however, the impact that this trait has on the wellbeing of older people has been studied to a lesser extent. The relationship between extraversion, participation in activities and psychological wellbeing in older people is analysed in this study.Material and methodsThe sample comprised 139 individuals over 55 years from rural and urban areas of the province of Granada who completed the extraversion subscale of the NEO-FFI and the Ryff Scales of the Psychological Wellbeing, as well as responding to questions that evaluated their social participation.ResultsA greater social participation was found in rural areas and among women. The activities more frequently performed by the participants were educational and religious activities, walking, everyday chores, crafts, and home improvements. A low positive correlation between extraversion and wellbeing was observed. The multiple regression analysis revealed that extraversion explained 19.9% of the variance in psychological wellbeing, which increased to 25.3% when social participation, gender, and the origin of the sample were considered.ConclusionsPsychological wellbeing appears to be associated with personality traits, such as extraversion. In addition this personality trait is linked to the number and type of activities the elderly perform which also contributes to wellbeing in old age.