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971.
We interpret three strands of social movement theory (social threat, opportunity structure, and resource mobilization) to understand religious congregations' political activity related to same‐sex marriage. Using a unique, national data set from the 2008 presidential election, we show the importance of the anti‐same‐sex marriage discursive opportunity structure (DOS) for facilitating, and occasionally constraining, congregational political activity. Other theoretical factors influence congregations under limited, although important, conditions. Our research develops a nuanced understanding of congregations' roles in social movements that prioritize institutionalized political activity and expands DOS theory in relation to local religious organizations. 相似文献
972.
973.
Social transformations in Brazil in recent years have included a substantial increase in adolescent fertility, a dramatic rise in membership of Protestant religious denominations, and an accompanying decline in the number of Catholics. We used the 2000 Brazil Census to examine differentials in fertility and family formation among adolescents living in Rio de Janeiro by the following religious denominations: Catholic; Baptist; other mainline Protestant; Assembly of God Church; Universal Church of the Kingdom of God; other Pentecostal Protestant; and no religion. Results from logistic regression models show that the majority of the Protestants are at a lower risk of adolescent fertility than Catholics, and that among adolescents who have had a child, most Protestants are more likely than Catholics to be in a committed union. Our findings offer some support for the hypothesis that Protestant churches are more effective than the Catholic Church in discouraging premarital sexual relations and childbearing among adolescents. 相似文献
974.
Joseph J. Sabia 《Journal of population economics》2008,21(1):111-134
While reducing out-of-wedlock childbearing is a central goal of welfare reform, most policymakers prefer achieving this objective
via a reduction in nonmarital pregnancy rates rather than through an increase in the incidence of abortion. Using aggregate
state-level data from 1984 to 1998, I estimate fixed effects models that allow for autocorrelated and heteroskedastic disturbances
to examine the association between the family cap and nonmarital birth, pregnancy, and abortion rates. I find robust evidence
that the family cap is associated with a reduction in nonmarital birth rates, particularly among black women. This reduction
is driven by a reduction in nonmarital pregnancy rates rather than through an increase in abortion or marriage rates. These
findings suggest that that the stigmatizing effect of the family cap may influence the nonmarital pregnancy decisions of black
women.
相似文献
Joseph J. SabiaEmail: |
975.
Carl P. Schmertmann Joseph E. Potter Suzana M. Cavenaghi 《Population research and policy review》2008,27(1):1-15
We use census data to investigate fertility change across more than 500 Brazilian microregions during 1970–2000, before and
after controlling for local covariates. We use semivariograms to analyze spatial patterns, in order to investigate the importance
of diffusion or social interaction in the spread of fertility transition across a map. Our analysis shows that spatial patterns
in Brazilian fertility change are strongly related to spatial patterns in measurable local conditions such as electrification,
child mortality, and female education. Differences in local conditions are particularly good at explaining spatial correlations
at distances >500 km. At shorter distances, there remains some unexplained spatial correlation in fertility change that could
be attributed to diffusion or social interaction. 相似文献
976.
Asian Americans are the most highly educated racial group in the United States and are commonly heralded as the model minority for their high academic success. Nevertheless, previous research suggests that Asian Americans may face certain disadvantages in school settings. For example, Asian Americans’ academic advantage over non-Hispanic white students diminishes between kindergarten entry and the next several years of schooling. This study provides a closer examination of the educational progress of Asian American students compared to white students through a seasonal comparison approach. Using the Northwest Evaluation Association, we analyze reading and math scores for over 130,000 Asian American and white students in grades K-7 in approximately 675 public schools across the US. We find that Asian Americans have higher academic achievement than white students in general, but that these advantages are maintained primarily through faster rates of learning during the summer months. When school is in session, the Asian advantage either remains unchanged or shrinks, consistent with the view that some school processes undermine the educational progress of Asian American students relative to white students. 相似文献
977.
This paper examines the impact of a rolling-schedule implementation on the performance of three of the better known lot-sizing methods for single-level assembly systems——Part-Period-Cost-Balancing, Silver-Meal, and Wagner-Whitin algorithms—and a modified version of the Silver-Meal procedure. The main finding is that under certain conditions the computationally simpler Silver-Meal heuristic can provide cost performance superior to that of the Wagner-Whitin algorithm. 相似文献
978.
Joseph R. Biggs 《决策科学》1979,10(1):96-115
Material Requirements Planning (MRP) is currently being applied and used extensively in industry and is being proclaimed as the solution to many of the problems of traditional production-inventory control problems. While the latter may be true, MRP is not without its own problems, two of which are the decisions concerning the appropriate lotsizing and sequencing rules to use in order to improve system performance. This paper describes a computer simulation study which was conducted to determine the effects of using various sequencing and lot-sizing rules on various performance criteria in a multistage, multiproduct, production-inventory system using MRP. The results of the study indicate that the application of various rules causes changes in system performance and that an interaction effect exists between lot-sizing and sequencing rules. What is more important is that a set of guidelines is developed to enable the practitioner to choose a lot-sizing rule and a sequencing rule that will tend to improve the performance of his system for the various performance criteria. 相似文献
979.
980.
Review of Economics of the Household - This paper investigates the impact of fertility on women’s entrepreneurship decision in Nigeria, using the 2008 and 2013 cross-sectional Demographic... 相似文献