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41.
In conditional logspline modelling, the logarithm of the conditional density function, log f(y|x), is modelled by using polynomial splines and their tensor products. The parameters of the model (coefficients of the spline functions) are estimated by maximizing the conditional log-likelihood function. The resulting estimate is a density function (positive and integrating to one) and is twice continuously differentiable. The estimate is used further to obtain estimates of regression and quantile functions in a natural way. An automatic procedure for selecting the number of knots and knot locations based on minimizing a variant of the AIC is developed. An example with real data is given. Finally, extensions and further applications of conditional logspline models are discussed. 相似文献
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Sara Cantillon Bertrand Maître Dorothy Watson 《Journal of Family and Economic Issues》2016,37(3):461-473
A core assumption in conventional poverty measurement is that household members share equally in total household income. This paper focuses on heterosexual couple households and asks to what extent male and female partners may derive different benefits from total couple resources. Drawing on the 2010 Irish Survey on Income and Living Conditions module, we examined the couple financial regime, by which we mean which partners received income, whether the income was from work, the extent to which income was contributed for the benefit of other household members and responsibility for decision-making. We explored whether the couple’s financial regime was associated with different living standard outcomes for the partners. Among the findings was the beneficial impact of having income from work and of shared responsibility for decision-making. The paper concludes by pointing to some implications for our understanding of power and bargaining in couples. 相似文献
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Lenka Vochocová Václav Štětka Jaromír Mazák 《Information, Communication & Society》2016,19(10):1321-1339
The article aims to contribute to the still relatively unexplored area of the relationship between gender and online political participation. Using two complementary methods – a representative, post-election survey of the adult Czech population and a content analysis of communication on the selected Czech political parties’ Facebook profiles during the campaign for the 2013 Parliamentary Elections – we attempt to challenge some established assumptions regarding the allegedly equalizing effect of the Internet and social media on participatory behaviour of men and women. While survey data discovered subtle yet statistically significant differences between men and women in some online expressive activities on Facebook, mainly commenting on other users’ statuses, content analysis further revealed that there are not only notable gender gaps among the Facebook users who commented on the campaign, but also differences in the tone of communication produced by the respective gender groups, with men posting more negative comments addressed to parties as well as to other Facebook users. We suggest that these results question the prevailing perception about the narrowing of the ‘gender gap’ in the online environment and call for a more nuanced methodological approach to different forms of online political expression. 相似文献
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Following an unprecedented boom, since 2008 Ireland has experienced a severe economic and labour market crisis. Considerable debate persists as to where the heaviest burden of the recession has fallen. Conventional measures of relative income poverty and inequality have a limited capacity to capture the impact of the recession in terms of social exclusion. This is exacerbated by a dramatic increase in the scale of debt problems including significant negative equity issues. Our analysis provides no evidence for individualization or class polarization of risk. Instead, while economic stress level is highly stratified in class terms in both boom and bust periods, the changing impact of class is highly contingent on life course stage. An income based classification showed that the affluent income class saw its advantage relative to the income poor class decline at the earliest stage of the life-course and remain stable across the rest of the life course. At the other end of the hierarchy, the income poor class experienced a relative improvement in their situation in the earlier life-course phase and no significant change at the later stages. For the remaining income classes, life-course stage was even more important. At the earliest stage the precarious class experienced some improvement in its situation while the outcomes for the middle classes remain unchanged. In the mid-life course the precarious and lower middle classes experienced disproportionate increases in their stress levels while at the later stage it is the combined middle classes that lost out. Additional effects over time relating to social class are restricted to the deteriorating situation of the petit bourgeoisie at the middle stage of the life-course. The pattern is clearly a good deal more complex than that suggested by conventional notions of ‘middle class squeeze’ and points to the distinctive challenges relating to welfare and taxation policy faced by governments in the Great Recession. 相似文献
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米列娜 《北京大学学报(哲学社会科学版)》2007,44(2):75-84
上个世纪之交,一种新的文化现象出现在中国东部沿海城市——即中文的现代西式百科全书问世。这些新式教育工具以简洁的语言为现代社会文化中的众多问题提供了简明而有序的信息,其创新意义,远非彼时中国所使用的“工具书”一词所能概括。本文考察了黄摩西1911年出版的《普通百科新大辞典》,它被视为1903-1911年间中国出版的同类著作中最先进的一部。我们特别关注这部著作之成为“现代”工具书的那些特征,以此勾勒出这部辞书的现代的、世界主义的特质,同时也展示出学者黄摩西的学术成就;并从一个特定角度,呈现已成为晚清社会风格标志的西学东渐的过程。 相似文献
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Nowadays, reverse logistics is gaining importance for many companies in different industries. This importance is rooted in the fact that it generates profit and decreases the environmental impacts of products. Even though the decrease of environmental impacts is an indispensable requisite, reverse logistics design is only driven by cost indicators. The main reason behind this high cost is access to environmental information is difficult and is directly linked to data all along the lifecycle of the product. This paper presents a method by which reverse logistics design integrates environmental impacts based on the management of closed-loop product lifecycle. This method is divided into two processes: from beginning of life to end of life and from end of life to beginning of life. The first process integrates product data in order to calculate environmental impacts of the potential reverse logistics networks, whereas the second process selects the most appropriate reverse logistics network before optimising the product based on this particular network. The proposition is illustrated by a case study on a recycled aluminium automotive part. 相似文献
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