A further look at catholic fertility

The purpose of this paper is to determine the extent to which suburbanization has influenced the traditional fertility differences observed between Catholics and Protestants. It is hypothesized that suburbanization has served to decrease religious differences in fertility, since in the more advanced stages of urbanism, that is, suburbanization, the Catholic population is likely to adopt the fertility patterns of the larger and more secularized society. Attention is focused on two objectives: (1) to examine selected aspects of fertility for Catholic8 and Protestants living in metropolitan areas and (2) to analyze religious differentials in fertility among residents in different parts of the metropolitan community.The data, consisting of a sample of households in six metropolitan areas in three population size classes, supported the general findings pertaining to religious differences in fertility that have been reported in the literature. Catholics had larger families, shorter average spacing between children, and longer fertility spans when compared to Protestants, even when a number of control variables were employed. Examining fertility differences between Catholics and Protestants in central city and suburban segments of large and small metropolitan areas, we found that the data indicated that marked Catholic-Protestant differences are still found in central cities. However, fertility differences between the two religious groups tended largely to disappear among suburban residents. The convergence in the fertility patterns of suburbanites is due to combined effects of higher fertility among Protestant suburban residents when compared to central city Protestants and the tendency of suburban Catholics to have fewer children than those who live in the city. The net result is convergence in suburban fertility.     

Attitudes toward abortion among catholic Mexican-American women: The effects of religiosity and education

Contrary to observed trends in religious fertility and contraceptive use differentials, Catholic/non-Catholic differentials in attitudes toward abortion have not been converging. This study suggests that this may be due to an interaction between religiosity and education. In a sample of Catholic Mexican-American women in Los Angeles County, the authors found that among respondents brought up in Mexico, education had a liberalizing effect on their attitudes. With the exception of the most devout, the same trend was observed among U.S.-reared respondents. Among the most religious group, however, education had the opposite effect, suggesting that convergence will be delayed.     

The influence of catholic schools on the desegregation of public school systems: A case study of white flight in Boston

White flight from public school desegregation can result in educational and residential resegregation which defeat the purpose of desegregation programs. One form of white flight is pupil transfer to private schools, which in major metropolitan areas are predominantly Catholic schools. Unlike residential relocation, transfers to Catholic schools do not effect an increase in residential segregation and they constitute a potentially less permanent loss to the public system than that caused by relocation. Nevertheless, empty seats in area Catholic schools pose a threat to the success of any desegregation program. For the Catholic diocese, the white flight issue creates a complex conflict of interests, involving institutional self-interest and competing claims to moral principles and Church teachings.A case study of Boston indicates that approximately 2,000 students transferred to Catholic schools from the public system, accounting for over 20 percent of white pupil loss to the public system. This occurred despite diocesan policies designed to prevent white flight to Catholic schools. An analysis of political and institutional constraints on policy development and implementation provides a basis for predicting Church response to future desegregation programs in other locations. Suggestions for diocesan programs designed to address desegregation issues are included.This research was conducted as part of a national study of public school desegregation directed by Karl E. Taeuber. Funding was provided by the Institute for Research on Poverty and the Wisconsin Center for Educational Research, both at the University of Wisconsin at Madison. I wish to thank Dr. Taeuber for facilitating this particular study and for helpful comments on an earlier draft. I also wish to acknowledge the valuable assistance of Mary J. McDonald and Roger Hedge of the Massachusetts Department of Education and Rev. Eugene Sullivan, Superintendent of Schools of the Archdiocese of Boston. Conclusions and interpretations presented here are the sole responsibility of the author.     

The Expectation-Threshold model of reproductive decision making

It is proposed that as expectations about parenting become increasingly high, couples have an increasing tendency to decide to have a(or another) child. Similarly, as parenting expectations become increasingly low, couples have an increasing tendency to decide on sterilization. Couples without extremely high or low expectations continue to use contraceptives. Expectations are defined as Subjective Expected Utilities (SEUs) for having or not having a child. Preliminary results support the model and suggest that the threshold for making these decisions is not at neutral, but is conservative so that couples must have fairly high or low expectations before making such binding decisions are parenting or sterilization. The fact that data reveal that this exists supports the Expectancy-Threshold model, but it also requires a change in SEU Theory's maximization rule for some kinds of decisions.The authors wish to thank Carole Baker, former executive Director of the National Alliance for Optional Parenthood, and the board members of that organization for their cooperation, and Dr. Barbara Beach who helped with the data analysis. Funding was provided, in part, by The Center for Studies in Demography and Ecology, University of Washington, through a grant, No. 5 P30 HDO 9397, from the National Institute for Child Health and Human Development     

The association of television and radio with reproductive behavior

This note analyzes the association between media exposure and reproductive behavior in 48 developing countries. A summary of part of a more extensive Demographic and Health Surveys report, it shows strong connections between media exposure and the use of modern contraception, the number of children desired, and recent fertility. Television viewing is particularly important; it is assumed to expose viewers to aspects of modern life that compete with traditional attitudes toward the family and is associated with greater use of modern contraceptive methods, with a desire for fewer children, and with lower fertility. These relationships are particularly noteworthy because the data measure only the frequency of media exposure with no information about its content.     

The benefits of basic research: advances in reproductive physiology

At the Population Council's Center for Biomedical Research basic research is being conducted on the reproductive system with a view to develop new contraceptive and reproductive health technologies. Research in the Reproductive Physiology Program at the Center is carried out by reproductive endocrinologists, molecular biologists, and biochemists working in eight laboratories. In several of the laboratories the function of hormones that regulate spermatogenesis is studied. Scientists in Milan Bagchi's laboratory have developed a model system, composed of cellular components in a test tube, that allows them to study the full sequence of events involved in signal transduction. In James Catterall's laboratory, scientists study how androgens regulate sexual development at the molecular level. The steroid hormones cortisol and corticosterone play critical roles in mammalian fetal development. Scientists in several laboratories study the function of two specialized testicular cells: the Leydig and Sertoli cells. The Leydig cell synthesizes and secretes testosterone, an androgen that regulates spermatogenesis. The Sertoli cell maintains the environment in which spermatogenesis occurs. Researchers in Glen Gunsalus's laboratory study an androgen-binding protein secreted by the Sertoli cell. In collaboration with scientists at the Shanghai Research Center of Biotechnology, they used advanced genetic techniques to create a biologically active form of the protein in silk worm larvae. Scientists in Patricia Morris's laboratory recently identified molecular signals that control the interactions between developing sperm and Sertoli and Leydig cells. In the laboratory of David Phillips, scientists are investigating how the HIV virus penetrates the outer layer of cells in the genital tract and infects underlying cells. In 1994 a vaginally applied microbicide was developed that may inhibit infection by sexually transmitted diseases including HIV. Applications of basic research such as this demonstrate that reproductive physiology is, indeed, a utilitarian science that society is wise to support.     

The reproduction of reproduction: theorizing reproductive (im)mobilities

ABSTRACT

Through a reading of the articles gathered in this special issue, this commentary seeks to assess how critical research on reproductive processes, spatialities, temporalities, and assemblages can push mobilities theory towards rethinking the politics of (im)mobilities, which can also give us a new lens on the reproduction of reproduction. It begins with questions of scale, and the power relations involved in the heterogeneous mobile embodiments and bodily entanglements of reproduction, including mobilities involved in fertility, assisted conception, surrogacy, abortion, egg freezing, or traveling to give birth. It then draws on process theories and relational ontologies within mobilities theory to think about multiple kinds of becoming as crucial to temporal processes of reproduction, involving both molar and molecular politics. Lastly, it elucidates the kinopolitics of reproduction and broadens the field of critical mobility studies to better take into account the material assemblages and affective entanglements of reproductive politics.     

North American surrogate reproductive mobilities incited by cross-border reproductive care

ABSTRACT

The transnational mobility of intended parents traveling abroad for reproductive technologies has been heavily accounted for and theorized. On the other hand, scholars have emphasized the immobility of surrogates in places like India, Nepal and Cambodia. In order to extend an examination of how reproductive travel informs mobility, this paper will turn a critical eye toward North American surrogates’ reproductive mobilities that are incited by their participation in cross-border reproductive care. Surrogates in the United States are strikingly different from the images presented of surrogates in India. In fact, when the North American surrogates cycle for international intended parents, in some aspects they become less and more mobile. This paper will focus on multiple types of reproductive mobilities that are involved in the global fertility industry when international intended parents travel to North America for assisted reproduction.     

Ant reproductive strategies

In contrast to what is generally believed, the reproductive strategies of ants are remarkably diverse and include such different phenomena, as wingless female and male sexuals, reproduction by mated workers, thelytokous parthenogenesis, and complete workerlessness. We review the various reproductive life histories and investigate them in the light of recent models on the evolution of dispersal strategies and multiple-queening. It appears that most deviations from “normal” colony propagation can be explained by a decreased success of dispersal and solitary founding by solitary queens in certain types of habitats. Consequently, alternative reproductive strategies are found especially in those species, in which environmental conditions or a highly specialized way of life are thought to make solitary founding costly. Among the key factors, which determine the success of reproductive strategies, appear to be spatial and temporal distribution of habitats and the availability of nest sites.     

The effects of monetized food aid on reproductive behavior in rural Honduras

This article presents research findings on the question of whether the monetization of non-emergency food aid has adversely influenced national family planning program efforts in Honduras. Women receiving food aid in the form of cash coupons are compared in the study with women receiving food rations and a third group of women with similar characteristics who were not food aid recipients on three types of outcomes: recent fertility, fertility preferences, and contraceptive use. The health facilities where study subjects received health/family planning services and food aid benefits were also compared to assess possible adverse cross-program effects on family planning service delivery. A sample selection model was used in the analysis to control for unobserved differences between comparison groups. No compelling evidence for adverse demand- or supply-side effects of monetized food aid on family planning efforts was observed. The most striking study finding was the extremely high level of unmet need for family planning.     

Demographic implications of reproductive technologies

Medical advances in the infertility field are coming at a rapid pace. This paper examines four areas of demography that are being affected by the delivery of infertility services in the United States, or have the potential to be affected. The greatest effects are currently seen in the rapid increase in the rate of multiple deliveries, with smaller effects evident in delayed childbearing. To date the sex ratio at birth in the United States has not been affected by reproductive technologies. The experience from Asian countries such as Korea and China indicates that massive societal change coupled with reproductive technologies could bring about changes in the sex ratio at birth in the United States. The last area examined is the intergenerational transmission of infertility which to date has not been largely affected by reproductive technologies, but has the potential to affect a larger proportion of the population.     

Reproductive ideals and educational attainment among white Americans, 1943-1960

Abstract Would the persistent inverse relation between educational attainment and family size in the United States be removed if actual fertility were equal to ideal? Data on ideal family size from 10 national surveys among white Americans of both sexes (from 1943 to 1960) show that gradeschool level respondents have higher ideals than the more educated even when age, religious affiliation, and farm residence are used as controls. Comparison of these ideals with the actual family size or ever-fertile women in the United States indicates that, on the average, the actual family size of all major educational groups falls below the ideal, but the college-educated are furthest from their ideal. If this group lessened the gap between actual and ideal family size, the educational differential in fertility would decrease, but at the price of increasing the rate of population growth.     

Income and reproductive motivation

It is often assumed that family size and income would be positively related if unwanted births among the less advantaged were prevented. But this assumption rests on a prior expectation that family-size preferences bear a direct relation to income in modern societies. Data on such reproductive preferences in relation to economic status from 13 studies in the United States dating between 1936 and 1966 do not support the notion of a positive association between reproductive preferences and income. Only when Catholics are considered is there even a U-shaped relation between family-size desires and income. These results cast doubt on the notion that the economic theory of demand for consumer durables is relevant to reproductive motivation. Rather, the data lend credence to the idea that significant non-economic influences associated with prosperity depress family-size desires among the well-to-do. Only if these influences are specifically weakened by a counter-force (such as Catholicism) do wealthier people show a preference for somewhat larger families. In no case, however, are the Catholic/non-Catholic differences in reproductive preference large. Moreover, no economic group, even among non-Catholics, prefers very small families.     

Income and reproductive motivation

Abstract It is often assumed that family size and income would be positively related if unwanted births among the less advantaged were prevented. But this assumption rests on a prior expectation that family-size preferences bear a direct relation to income in modern societies. Data on such reproductive preferences in relation to economic status from 13 studies in the United States dating between 1936 and 1966 do not support the notion of a positive association between reproductive preferences and income. Only when Catholics are considered is there even a U-shaped relation between family-size desires and income. These results cast doubt on the notion that the economic theory of demand for consumer durables is relevant to reproductive motivation. Rather, the data lend credence to the idea that significant non-economic influences associated with prosperity depress family-size desires among the well-to-do. Only if these influences are specifically weakened by a counter-force (such as Catholicism) do wealthier people show a preference for somewhat larger families. In no case, however, are the Catholic/non-Catholic differences in reproductive preference large. Moreover, no economic group, even among non-Catholics, prefers very small families.     

Husband-wife agreement about reproductive goals

Data from Malaysia on the reproductive goals of husbands and wives are analyzed to determine level of agreement, using new scale measures on preferences for number and sex of children as well as the conventional measure of desired number of children. The level of agreement between husband and wife varies considerably depending on the focus of analysis and the measure of agreement used. Overall aggregate agreement of men and women is high but lower for subgroups of the population, particularly among various ethnic groups. For marital partners, the agreement is much lower, especially on sex preferences. The level observed depends on whether the measure is identity of responses or an index of homogeneity which allows for couple concordance based on chance or common socialization factors. The views about the reproductive goals of one marital partner cannot with confidence be assumed to represent the views of the other.     

Competitive exclusion through reproductive interference

Summary A simple differential equation model was developed to describe the competitive interaction that may occur between species through reproductive interference. The model has the form comparable to Volterra's competition equations, and the graphical analysis of the outcome of the two-species interaction based on its zero-growth isoclines proved that: (1) The possible outcome in this model, as in usual models of resource competition, is either stable coexistence of both species or gradual exclusion of one species by the other, depending critically upon the values of the activity overlapping coefficientc _ij ; (2) but, for the samec _ij -values, competitive exclusion is much more ready to occur here than in resource competition; (3) and moreover, the final result of the competition is always dependent on the initial-condition due to its non-linear isoclines, i.e., even under the parameter condition that generally allows both species to coexist, an extreme bias in intial density to one species can readily cause subsequent complete exclusion of its counterparts. Thus, it may follow that the reproductive interference is likely to be working in nature as an efficient mechanism to bring about habitat partitioning in either time or space between some closely related species in insect communities, even though they inhabit heterogeneous habitats where resource competition rarely occurs so that they could otherwise attain steady coexistence.     

A dynamic model of the reproductive process

Summary A dynamic deterministic model of the reproductive process is presented. The model describes and analyses the effect of intermediate fertility variables on fertility. The intermediate fertility variables which are the inputs to the model, include the duration of post-partum amenorrhea, fecundability, incidence of spontaneous and induced abortion, contraceptive use and effectiveness, the distribution of age at first marriage and the age specific risks of marital disruption and remarriage. To test the validity of this model, it is fitted to data obtained from reproductive histories of 512 marriages occurring during the first half of the eighteenth century in Canada.     

重庆市居民生育意愿调查分析

本文通过问卷调查对重庆市居民的生育意愿进行了定量分析,对不同特征人群的生育意愿,包括理想生育子女数量、子女性别偏好、理想最佳生育年龄和生育目的四个维度进行了比较研究。文章在分析重庆市居民生育意愿的现状及其影响因素的基础上,提出了倡导正确生育观及促进人口发展的政策建议。