The Italian Labour Force Survey to estimate fertility

The own-children method (OCM) applied to the Italian Labour Force Survey (ILFS) is an alternative way to give information on fertility for the years before the survey. By deriving children information and the population at risk on the basis of parents’ characteristics, a large-scale dataset for fertility analysis in Italy becomes available, also to reconstruct event histories. The quality assessment provided by comparing the total fertility rate (TFR) calculated on ILFS with the official regional and national TFRs by ISTAT gives us usable outcomes.     

Accuracy of approximate progressively censored reliability sampling plans for exponential models

Reliability sampling plans provide an efficient method to determine the acceptability of a product based upon the lifelengths of some test units. Usually, they depend on the producer and consumer’s quality requirements and do not admit closed form solutions. Acceptance sampling plans for one- and two-parameter exponential lifetime models, derived by approximating the operating characteristic curve, are presented in this paper. The accuracy of these approximate plans, which are explicitly expressible and valid for failure and progressive censoring, is assessed. The approximation proposed in the one-parameter case is found to be practically exact. Explicit lower and upper bounds on the smallest sample size are given in the two-parameter case. Some additional advantages are also pointed out.     

Judging childhood

This article brings ethnohistorical inquiry to bear in exploring the certainties of Progressive Era reformers regarding the role of the state, the meaning of childhood, and the power of intervention in the lives of children, youth, and families in Butte, Montana. The author draws on the key themes of the Just Practice perspective (Finn & Jacobson, 2008)—as an organizing frame to explore assumptions and contestations regarding childhood, well-being, trouble, and intervention as expressed through primary source documents and reports of juvenile court proceedings in Butte from 1900 to 1914. Butte, a site of rapid industrialization at the turn of the last century, provides a local context in which to examine ways these certainties were asserted, negotiated, embedded, and resisted in the making of a nascent system of child welfare and juvenile justice. The historical analysis offers a foundation for critical reflection on the certainties embedded in contemporary practice with children and youth.     

出生性别比综合治理:有所为,有所不为

从1980年我国出生性别比越过正常值域至今,党和各级政府制订了种种措施进行综合治理,但取得的成效甚微。这一时期我国治理工作的特点有:重视禁止性法律法规的制定,但与之相配套的规章制度比较缺乏;重视目标任务的提出,但落实目标的措施比较缺乏;部门性、专项性规章制度较多,综合性规章制度比较缺乏。今后一段时期内综合治理工作,可以按照避实就虚、避难就易的原则,在大力发展社会经济、建立健全社会养老制度、相关法律法规的制定与完善、加大对两非行为的打击力度等方面有所作为;而在人口生育政策的调整、传统文化的改变等方面有所不为。     

中美俄博弈模式分析:决策层级、动机及过程

以中美俄博弈的决策模式为研究对象,并通过列举中美和中俄两个具有合作性质的博弈案例,进而深入分析中美俄博弈的决策角色、决策动机和决策过程,指出决策角色可分为第一层级、第二层级和辅助层级,而国家利益是最重要的决策动机.为了追求决策效率,三国决策者紧密控制决策过程,防止其他权力部门分享决策权.     

Age at First Marriage and Age at Death in the Lincolnshire Fenland, 1252–1478

In five Lincolnshire villages between 1252 and 1478 there is evidence that men and women married fairly late before the Black Death, and that by 1348/9 the Western European marriage pattern of late and prudential marriage was well established. Households were usually nucleated; husbands were on average eight years older than their wives before 1348/9, and five years older after 1348/9. Marriages were short: according to the best calculation shorter before 1348/9 than after, most often terminated by the death of the first husband, and were unlikely to produce more than three children. Since there were more males than females amongst children and young adults, many men remained unmarried, but since the death rate of women was very high, men lived longer.     

中国育龄妇女生育集中度变化分析——基于“五普”、“六普”数据

新中国成立以来,结束了上千年的封建制度给妇女带来的桎梏,妇女的社会地位有了明显的提升,具体表现在社会活动的参与率有了显著的提高,同时妇女在生育行为方面也发生了巨大的变化。本文利用最近两次中国人口普查数据来分析育龄妇女的生育集中度变化情况,并以此对中国目前TFR很低的现象做了解释,据此推断中国在未来几年的时间,总和生育率在一定程度上会呈上升的变化趋势,但不可能在短期内回升到更替水平。     

企业诚信与竞争优势的关系研究--基于苏州等六地188家企业的实证调查

本文在综合和提炼了企业诚信与竞争优势的相关理论基础上,将企业诚信分为三个维度,分别是信用水平、品牌、利益相关者信任;将竞争优势分为销售业绩、发展潜力、管理绩效三个维度.本文分析了企业诚信三维度与竞争优势三维度之间的相关和回归关系,研究结论有利于企业诚信建设.     

企业营销道德水准测试的指标体系及评价方法研究

本文是“企业营销道德水准测试及评价系统”课题的前期研究成果。作者首先通过探测性调研确定了影响营销道德水准评价的企业营销行为,并在定量调研基础上将其归并为七个评价营销道德水准的维度,同样还根据定量调研的结果确定了企业营销道德水准的测评方法,为营销道德水准测试与评价系统的建立构筑了重要基础。     

OPTIMAL EXPERIMENTAL DESIGNS FOR MULTILEVEL MODELS WITH COVARIATES

In this paper optimal experimental designs for multilevel models with covariates and two levels of nesting are considered. Multilevel models are used to describe the relationship between an outcome variable and a treatment condition and covariate. It is assumed that the outcome variable is measured on a continuous scale. As optimality criteria D-optimality, and L-optimality are chosen. It is shown that pre-stratification on the covariate leads to a more efficient design and that the person level is the optimal level of randomization. Furthermore, optimal sample sizes are given and it is shown that these do not depend on the optimality criterion when randomization is done at the group level.