Assessing goodness-of-fit of categorical regression models based on case-control data

Demonstrated equivalence between a categorical regression model based on case‐control data and an I‐sample semiparametric selection bias model leads to a new goodness‐of‐fit test. The proposed test statistic is an extension of an existing Kolmogorov–Smirnov‐type statistic and is the weighted average of the absolute differences between two estimated distribution functions in each response category. The paper establishes an optimal property for the maximum semiparametric likelihood estimator of the parameters in the I‐sample semiparametric selection bias model. It also presents a bootstrap procedure, some simulation results and an analysis of two real datasets.     

现代性批判:一种从政治哲学立场出发的考察——对恒久和普遍的美好生活原则的辩护

当前西方危机与现代性危机最深刻的症候,是在其最高知识权威的影响下,现代后期的某些学说(列奥·施特劳斯所谓的历史主义、相对主义学说)撼动了西方人的根基,人们丧失了方向感。这种理论上的危机带来的实际后果主要表现在:一种本来意义上的政治哲学所要求的普遍有效方式去解答对错、好坏问题不再可能。既然现代性的危机源于对现代政治哲学隐含的这个前提的表达,那么,现代性批判的中心课题是对现代理性主义或对理性之现代信仰的批判,它逻辑地包含了对恒久和普遍美好生活原则的辩护,试图恢复人们的自信,以便能够合理地赋予价值判断以效力。     

重庆性格和码头文化精神的扛鼎之作——莫怀戚长篇小说《白沙码头》研讨会综述

2008年9月,莫怀戚长篇小说<白沙码头>研讨会在重庆召开.与会专家学者一致认为:<白沙码头>不是一般意义上的传奇小说,其内涵深厚,信息量极大,它所展示的民间生存智慧和作家的民间艺术立场相当鲜明而感人,特别是对我们反省现实、反省历史、反省我们当代人自己具有不可替代的价值意义.     

Quadratic estimators of covariance components in a multivariate mixed linear model

It is known that the Henderson Method III (Biometrics 9:226–252, 1953) is of special interest for the mixed linear models because the estimators of the variance components are unaffected by the parameters of the fixed factor (or factors). This article deals with generalizations and minor extensions of the results obtained for the univariate linear models. A MANOVA mixed model is presented in a convenient form and the covariance components estimators are given on finite dimensional linear spaces. The results use both the usual parametric representations and the coordinate-free approach of Kruskal (Ann Math Statist 39:70–75, 1968) and Eaton (Ann Math Statist 41:528–538, 1970). The normal equations are generalized and it is given a necessary and sufficient condition for the existence of quadratic unbiased estimators for covariance components in the considered model.     

融资租赁在我国中小企业中的应用前景分析

由于中小企业自身原因和中国金融市场的不完善,融资问题长期困扰并阻碍企业发展.剖析中小企业融资租赁现状,阻碍融资租赁的因素,进而说明融资租赁在我国中小企业中如何才能得以发展的可观前景.     

山西省发展世界遗产地旅游SWOT分析

以SWOT分析法为基础,运用对比分析等手段,对山西省发展世界遗产旅游的优势、劣势、机遇和挑战进行研究,最后提出结论山西省应该在发展"佛教旅游"、"大院旅游"、"根祖旅游"和"红色旅游"的同时,开展"遗产地旅游".同时提出问题如何选择一种发展途径和管理模式,在发展遗产旅游的同时,促进遗产资源更好地得到保护,实现世界遗产的"代际公平".     

Wer das Stabilisieren vergisst: Warum eine schöne Abschlusspräsentation noch kein gutes Ende bedeutet

Many organizational change projects fail — despite a well thought out concept, professional project management and a binding implementation timetable. The reason why the expected success doesn’t materialize often lies with the missing maintenance. Once the project is officially completed and the client and project manager withdraw, the manner in which the organization will take up these changes is seldom systematically dealt with. Difficulties often arise when no discrete stabilizing measures are planned. We have derived four central action areas which will be clarified by way of practical examples. It will also be shown what is important to pay attention to in the stabilization phase so that a lasting success of the organizational change project can be ensured.