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61.
We examine whether institutionalized practices and beliefs regarding breadwinning roles are associated with the choice of more or less equal money management strategies in marriage. Using cross‐national data from 21 country contexts in the International Social Survey Programme and multilevel modeling, we find that in contexts of shared breadwinning, there is a greater likelihood of shared management of money, controlling for the relative income contribution of each spouse. We also find some evidence that the effect of spouses’ relative income contributions diminishes in contexts of shared breadwinning. Our analysis comparing women’s and men’s money management is consistent with previous research indicating that women’s management may be more work than power. 相似文献
62.
Geoffrey S. Watson 《Journal of applied statistics》1994,21(4):327-333
We suppose that L x i = Fq(μi, KiK) for i=1,...,p, where the independent Fisher distributions on the unit sphere in Rq have modal vectors μi and known concentrations KiK, where K will be large—in fact, to obtain asymptotic distributions, we will let K tend to infinity. The term x'iXj=cos 0ij estimates cos 0ij= μiμy. The asymptotic joint distribution of the terms will be studied when all the vectors μi μ are distinct, and for the special case when all the vectors μi=μ, so that all the terms are zero. These very different results have a variety of applications as well as being interesting in themselves. One of these applications is the 'multiple comparisons problem' for unit vectors. However, it was found necessary to give here a different way of solving this problem. 相似文献
63.
The goal of most work teams is high performance. Prior studies suggest that performance within work groups is influenced by that group’s social network topology. Research has generally revealed to date that group cohesion (i.e., network density) is positively related to team performance under certain conditions. However, more recent research has indicated that this is not the full story. Recent research suggests that an inverse curvilinear relationship exists between social network measures (of which group cohesion is one) and team performance. In response to the need for understanding this relationship more fully, and leveraging the promising new insights that can be garnered with the use of social network analysis (SNA), this study employs SNA as a tool to explore the structural cohesiveness of teams of travel agents. This research extends our understanding of the relationship between intragroup social network relations and team performance by confirming an inverse curvilinear relationship exists between group cohesion and team performance. This paper leverages email communication to determine the social networks of each team, and then examines such in light of team performance. In total, an analysis of more than 7 million emails was undertaken. This study was conducted with work teams within a service organization. Each team in the study carries out the same tasks, i.e., identical task contingency, yet represents a distinct unit of analysis. The study confirms that social network topology is a valuable predictor of team performance and confirms that, like so many other social network measures, group cohesion and team performance share an inverse ‘U’ shaped relationship, not strictly a positive one as previously posited. 相似文献
64.
Just recently, information systems with rather unique characteristics have begun to emerge. These systems usually referred to as Decision Support Systems, feature decision models, a data base and the decision maker as subsystems and are specifically oriented to supporting decision making. This article examines Decision Support Systems and their application to banks. 相似文献
65.
A variety of statistical regression models have been proposed for the comparison of ROC curves for different markers across covariate groups. Pepe developed parametric models for the ROC curve that induce a semiparametric model for the market distributions to relax the strong assumptions in fully parametric models. We investigate the analysis of the power ROC curve using these ROC-GLM models compared to the parametric exponential model and the estimating equations derived from the usual partial likelihood methods in time-to-event analyses. In exploring the robustness to violations of distributional assumptions, we find that the ROC-GLM provides an extra measure of robustness. 相似文献
66.
Sean Collins 《商业与经济统计学杂志》2013,31(3):267-277
This article reviews several techniques useful for forming point and interval predictions in regression models with Box-Cox transformed variables. The techniques reviewed—plug-in, mean squared error analysis, predictive likelihood, and stochastic simulation—take account of nonnormality and parameter uncertainty in varying degrees. A Monte Carlo study examining their small-sample accuracy indicates that uncertainty about the Box–Cox transformation parameter may be relatively unimportant. For certain parameters, deterministic point predictions are biased, and plug-in prediction intervals are also biased. Stochastic simulation, as usually carried out, leads to badly biased predictions. A modification of the usual approach renders stochastic simulation predictions largely unbiased. 相似文献
67.
ABSTRACTThis article details the findings of a series of analyses regarding how the institutional leaders of Master of Social Work Programs (MSW) in the United States form their perceptions on the role and implementation of substance use concepts in social work education. Five statistical tests were performed on data collected from a 2017 substance use education (SUE) survey of MSW program leaders, and the analyses were used to explore how program leaders form their perceptions on: the importance of SUE to social work, the need for regulatory measures for SUE in social work, the SUE needs of individual MSW programs, the implementation of substance use course content, and graduating students’ substance use intervention capacities. Significant findings from the analyses showed that: the amount of foundational course emphasis on clinical SUE within individual programs is a significant predictor of program leader perceptions on students’ clinical substance use intervention capacities; different categories of substance use intervention preparedness have interconnected effects among domains of preparedness; and perceptions on the importance of SUE to social work have a significant impact on program leaders’ opinions regarding regulatory measures for SUE in social work. 相似文献
68.
Sean Joss Gossel 《Journal of Policy Modeling》2018,40(4):647-662
This paper investigates the relationship between FDI, democracy and corruption among 30 countries in Sub-Saharan Africa (SSA) over the period of 1985–2014 to determine whether the ‘helping hand’ or ‘grabbing hand’ hypothesis is most applicable. The results of GMM analysis show that corruption is used by FDI investors to overcome the region’s weak democratic regulatory and institutional status and thus the ‘helping hand’ is more prevalent. However, the results further show that as democratic capital accumulates, this association may outlive its usefulness and thus corruption as a ‘helping hand’ in time becomes a ‘grabbing hand’ instead. These results imply that SSA countries should focus on integrating into the international economy so as to take advantage of existing financial enforcement legislation while reconstructing and strengthening domestic constitutional anti-corruption legislation and institutions. 相似文献
69.
Principal component analysis of indicators from the 1991 Census was used to characterise the social context of school age Welsh speakers in South East Wales. The area had been largely anglicised by the Census of 1971, but the growth of Welsh-medium education was responsible for net gains in numbers of younger Welsh/English bilinguals. Doubts as to whether young people will remain active bilinguals after leaving school have been raised. The inter-relationships between figures for Welsh speaking in the Census and other social indicators were examined. Being categorised as a young Welsh speaker was found to cut across an economic advantage/disadvantage dimension, and so was a matter of life style rather than a by-product of parental choices unrelated to language resurgence. Probing life styles by means of interviews where Welsh-medium and English-medium schools could be matched on the economic advantage/disadvantage dimension showed that deciding for Welsh-medium education was embedded in authentic local life styles. Although networks of people at more local spatial scales were involved in Welsh-medium education, they were linked to wider scale networks establishing domains for Welsh language use in the public sector and local government. 相似文献
70.