社会保障支出、经济增长与居民消费的区域差异研究

基于扩展的杜森贝利消费函数,以区域差异的视角对东、中、西部地区1997～2009年的社会保障、经济增长与居民消费之间的长短期效应进行实证研究。结果显示,我国社会保障支出、经济增长与居民消费存在长期的协整关系,居民消费水平与社会保障支出呈显著正相关,西部地区社会保障支出对居民消费的拉动作用最大,中部次之,东部最小。其政策含义是:应加大中西部地区在社会保障领域的支持力度,促进地区间公共服务均等化,降低人们的不确定性预期,实现居民消费的稳定性和经济健康发展。     

我国证券投资基金绩效评估的实证研究

本文用评价基金绩效的传统"三大指数"及目前流行的VaR、RAROC等指标对我国的证券投资基金进行了绩效评估。结果表明各种指标对基金评估的优劣排序差异均较大。因此本文在这些指标值的基础上,建立了因子分析模型并通过SPSS进行因子分析,得出了样本基金的综合排名。因子分析的结果还表明,目前比较成熟的指标主要反映的是基金收益和风险两方面的信息。     

综合交通运输方式协调发展评价实例研究

针对交通运输系统结构失衡、相互割裂而导致的运输低效率问题,将综合交通运输系统作为一个整体加以分析,对各运输方式协调发展进行评价.基于数据包络分析(DEA)方法,结合实例对综合交通运输系统中各子系统的协调发展程度进行定量评价,验证了模型的合理性和适用性,获得了具有启发性的结论.     

浅析语言学习中的错误及对策

学生语言学习的错误主要有两类操作性错误即语法错误与交际性错误,对于一般性语法错误,不要纠正过多.对于交际性错误要给予重视,要注意加强社会文化教育.     

Delay causes analysis in complex construction projects: a Semantic Network Analysis approach

Delays are among the most crucial adversaries to the success and performance of construction projects, making delay analysis and management a critical task for project managers. This task will be highly complicated in large-scale projects such as construction, which usually consist of a complex network of heterogeneous entities in continuous interaction. Traditional approaches and methods for the analysis of delays and their causes have been criticised for their ability to handle complex projects, and for considering the interrelationships between delay causes. Addressing this gap, this research introduces an alternative approach for delay causes analysis by adopting Semantic Network Analysis (SNA) method. The paper reports the results from an investigation of delays in construction projects in the Oil-Gas-Petrochemical sector using SNA. The method’s capacity to identify and rank delay causes, which can assist managers in selecting appropriate measures for eliminating them, are empirically examined and discussed. The paper argues that SNA leads to a more comprehensive understanding of the main causes of delay in large and complex projects, allowing a better identification and mapping of the interrelationships between these discrete factors.     

Divorce and parity progression following the death of a child: A register-based study from Finland

Most studies that have examined whether a child’s death influences parental relationship stability have used small-scale data sets and their results are inconclusive. A likely reason is that child loss affects not only the risk of parental separation, but also the risk of having another child. Hence parity progression and separation must be treated as two competing events in relation to child loss. The analysis in this paper used Finnish register data from 1971 to 2003, covering over 100,000 married couples whose durations of both first marriage and parenthood could be observed. We ran parity-specific Cox regressions in which process time started from the birth of each additional child. All marriages included women of childbearing age, none of whom had experienced any child death on entering the analysis. We find that child loss only modestly influences the divorce risk, whereas its effect on the risk of parity progression is considerable.     

Modelling period fertility: Schooling and intervals following a birth in Eastern Africa

We describe a regression-based approach to the modelling of age-, order-, and duration-specific period fertility, using retrospective survey data. The approach produces results that are free of selection biases and can be used to study differential fertility. It is applied to Demographic and Health Survey data for Ethiopia, Kenya, Tanzania, and Zimbabwe to investigate differential trends in fertility by education. Parity progression fell and the intervals following each birth lengthened between the 1970s and 2000s in all four countries. Fertility fell most among women with secondary education. In contrast to other world regions, postponement of successive births for extended periods accounted for much of the initial drop in fertility in these African countries. However, family size limitation by women with secondary education in Ethiopia and Kenya and longer birth spacing in Zimbabwe also played significant roles. Thus, birth control is being adopted in Eastern Africa in response to diverse changes in fertility preferences.     

Child labour measurement: Whom should we ask?

Funding decisions to support vulnerable children are tied to child labour statistics, hence the importance of an accurate measurement. The author analyses whether the type of respondent plays an important role in explaining variations in child labour statistics. Using data from two sites in Tanzania, the analysis shows that “whom we ask” matters considerably when estimating the prevalence of child labour. The results suggest that prevalence increases by approximately 35 to 65 per cent when using child self‐reports rather than proxy reports. This bias affects 14 to 31 per cent of the sample, depending on the indicator. Discrepancies decrease as the child ages and increase if proxy attitudes demonstrate opposition to child labour.     

Legal Marriage,Unequal Recognition,and Mental Health Among Same‐Sex Couples

The authors examined whether the perception of unequal relationship recognition ‐ a novel couple‐level minority stressor ‐ has negative consequences for mental health among same‐sex couples. Data were analyzed from a dyadic study of 100 same‐sex couples (200 individuals) in the United States. Being in a legal marriage was associated with lower perceived unequal recognition and better mental health; being in a registered domestic partnership or civil union—but not also legally married—was associated with greater perceived unequal recognition and worse mental health. Actor partner interdependence models tested associations between legal relationship status, unequal relationship recognition, and mental health (nonspecific psychological distress, depressive symptomatology, and problematic drinking), net controls (age, gender, race and ethnicity, education, and income). Unequal recognition was consistently associated with worse mental health, independent of legal relationship status. Legal changes affecting relationship recognition should not be seen as simple remedies for addressing the mental health effects of institutionalized discrimination.     

How Have Other Journals Compared to “The Top Seven” Journals in Family Social Science with Respect to LGBT-Related Research and Reviews? A Comment on “A Content Analysis of LGBT Research in Top Family Journals 2000–2015”? An Editorial Analysis

Van Eeden-Moorefield, Few-Demo, Benson, Bible, and Lummer (2018) recently reviewed the content of seven family social science journals with respect to theory and methods used in 153 articles featuring LGBT research or reviews of LGBT research. They concluded that less than three percent of 6,832 articles published in those journals between 2000 and 2015 were LGBT-related and that most had not used explicit theory and had used purposive cross-sectional samples consisting mostly of White and middle-class participants. During the tenure of the present editor, between 2010 and 2017, Marriage & Family Review featured 14 research reports, reviews, or commentary on LGBT-related issues out of 250 articles, not counting brief editorials or biographies between 2010 and 2017, an odds ratio of over 2.0 compared to the other “top-tier” journals. Likewise, the Journal of Family Theory & Review published at least 15 articles, mainly reviews or commentaries, on LGBT-related issues between 2009 and 2017. Articles in Marriage & Family Review and Journal of Family Theory & Review were more likely to be reviews of the literature, or feature explicit theory, to be qualitative in methodology, or to involve interviews or surveys, while other characteristics were similar to those in the other seven journals. Thus, even if some mainstream family journals did not publish often on LGBT-related issues, other important family science journals have done so. Furthermore, there are numerous scholarly journals that welcome LGBT-related research and reviews almost exclusively.