Robust methods of estimation of regression coefficients 1

Recently, cumulative residual entropy (CRE) has been found to be a new measure of information that parallels Shannon's entropy (see Rao et al. [Cumulative residual entropy: A new measure of information, IEEE Trans. Inform. Theory. 50(6) (2004), pp. 1220–1228] and Asadi and Zohrevand [On the dynamic cumulative residual entropy, J. Stat. Plann. Inference 137 (2007), pp. 1931–1941]). Motivated by this finding, in this paper, we introduce a generalized measure of it, namely cumulative residual Renyi's entropy, and study its properties. We also examine it in relation to some applied problems such as weighted and equilibrium models. Finally, we extend this measure into the bivariate set-up and prove certain characterizing relationships to identify different bivariate lifetime models.     

直面就业压力 创造就业机会应是社会发展的重要战略目标

本文认为， 我国２０ 年来的改革取得了巨大成就， 但以目前的经济和社会发展的状况和规模而言， 还无法为１２５亿人口中的所有劳动人口提供足够的就业岗位。因此， 当前和今后仍面临着巨大的就业压力。面对现实， 最大限度地创造就业机会， 应当成为我国在２１ 世纪前２０ 年或更长时间内发展战略的重要目标选择     

“返乡潮”下农民工就业问题的研究

自2008年9月金融危机全面爆发后，我国东南沿海大量外向型的中小企业倒闭或大量裁员，农民工首当其冲，出现了“返乡潮”。在我国就业形势已经比较严峻的前提下，农民工“返乡潮”加剧了我国目前的就业压力。“返乡潮”的形成有多方面的原因，这就需要通过开展培训加强就业技能；创新失业保险金使用来稳定就业岗位；采取以工代赈拓宽就业渠道；建立失业预警机制等措施来解决农民工就业问题。     

On the asymptotic distribution of Cook's distance in logistic regression models

It sometimes occurs that one or more components of the data exert a disproportionate influence on the model estimation. We need a reliable tool for identifying such troublesome cases in order to decide either eliminate from the sample, when the data collect was badly realized, or otherwise take care on the use of the model because the results could be affected by such components. Since a measure for detecting influential cases in linear regression setting was proposed by Cook [Detection of influential observations in linear regression, Technometrics 19 (1977), pp. 15–18.], apart from the same measure for other models, several new measures have been suggested as single-case diagnostics. For most of them some cutoff values have been recommended (see [D.A. Belsley, E. Kuh, and R.E. Welsch, Regression Diagnostics: Identifying Influential Data and Sources of Collinearity, 2nd ed., John Wiley & Sons, New York, Chichester, Brisban, (2004).], for instance), however the lack of a quantile type cutoff for Cook's statistics has induced the analyst to deal only with index plots as worthy diagnostic tools. Focussed on logistic regression, the aim of this paper is to provide the asymptotic distribution of Cook's distance in order to look for a meaningful cutoff point for detecting influential and leverage observations.     

河南省经济增长与就业关系的比较分析

相关数据表明,经济增长率显著高于就业增长率,就业弹性长期呈现下降趋势,但仍是拉动就业增长的主要动力。二三产业的就业弹性均显著高于全国水平:工业产值增长的就业弹性最高,是增加就业的主渠道;服务业就业弹性虽在下降,但也保持较高水平,是扩大就业的重要渠道;农业排斥就业,而且趋势加强。因此,扩大就业、优化就业结构,必须坚持不懈地推进工业化,大力发展现代服务业。     

《临川四梦》的地方特色与赣东民间演剧的关系

《临川四梦》旦、生用韵基本规范,但净、丑、贴、末等次要角色的戏剧场面活泼鄙俗,多用方言俗语,体现出浓重的赣东民间风情和演剧特色。这种现象在同时代的昆腔传奇曲家中是不可能有的,这是汤显祖＂临川四梦＂最鲜明的特色。     

Des corps étrange(r)s dans la police ? Les policiers minoritaires à Paris et à Berlin

Fieldwork in police stations in the Parisian region and Berlin is used to comparatively analyze how the assignment of identities shapes the occupational experiences of police officers recruited from among visible minorities. The processes for constructing and deconstructing the positions of minorities take place through negotiations during interactions among colleagues. They also depend on the institutional context. The stance of “denial” adopted by the French staff opens the way to tensions between officers from visible minorities and the others, whereas interventions by superiors in Berlin reduce the room for conflict while assigning a cultural identity to police officers recruited “from immigration”.     

中国知识型失业基本原因分析

当下中国知识型失业凸显了体制转型的失谐,其成因套用西方就业理论解释显得捉襟见肘;而仅仅归因于政府社会保障、就业服务等制度缺失或归因于高等教育、社会中介、社会观念等因素也显得差强人意,它们虽重要但非主要.影响中国知识型失业的主要的变量,一是劳动用工制度或就业市场体制;二是工业化战略中的产业结构和产业链因素.前者属于"生产...     

The marginalisation of children by the legal process

A major study carried out in the Melbourne Children's Court, Victoria, Australia, during 1993–1995, of the factors that influence magistrates' decision-making in child abuse cases, found that magistrates relied more on their legal training and individual discretion than on information from the child protection service when making these decisions. Magistrates' emphasis on adversarial procedures meant that the need to establish the facts in a case was the court's primary consideration and that children's interests, and welfare concerns about them, were marginalised in the hearing of child abuse matters. The article reports on this aspect of the larger study: how the adversarial process ill serves the rights, and best interests, of children in the hearing of child abuse matters and provides case examples to illustrate this. The information is drawn from the qualitative and quantitative data gathered for the major study; data collected from the observation of court hearings, interviews with magistrates and court record analysis.     

An adaptive allocation sampling design for which the conventional stratified estimator is an appropriate estimator

Adaptive allocations in stratified sampling design are suitable for studying Biological and Environmental populations. Biologists tend to use the conventional stratified estimator for an adaptive allocation sampling design in spite of its adaptive nature. In this paper, we have introduced an adaptive allocation sampling design for which the conventional stratified estimator has some desired statistical properties. We conduct a simulation study on a real population. The results show that the conventional stratified estimator for the introduced adaptive allocation sampling design is more efficient than other available estimators.