An Extended Single‐index Model with Missing Response at Random

An extended single‐index model is considered when responses are missing at random. A three‐step estimation procedure is developed to define an estimator for the single‐index parameter vector by a joint estimating equation. The proposed estimator is shown to be asymptotically normal. An algorithm for computing this estimator is proposed. This algorithm only involves one‐dimensional nonparametric smoothers, thereby avoiding the data sparsity problem caused by high model dimensionality. Some simulation studies are conducted to investigate the finite sample performances of the proposed estimators.     

非洲国家发展特征的三个维度及其本质——以撒哈拉以南非洲国家为考察中心

在撒哈拉以南非洲国家发展进程中,非洲社会传统特质与外部世界影响的交互作用,导致了按照西式民族国家模式构建的非洲国家在发展进程中受挫。它们大多处于"前民族国家"发展阶段。这些"前民族国家"虽然具备法理主权,但却缺乏经验主权。它们是在构建"民族国家"过程中,将早期非洲的国家机构与非国家组织等融为一体所形成的产物。这些国家具有一种以"新家长制"为特点的前现代性特征,使国家权威及认同下移至家族、氏族、部落、宗教群体、地域性社群等。同时,这些国家还维持着现代民族国家的外壳,以及由非洲地区一体化所促成的"地区国际社会"。不过,现代国家与后现代国际体系都只是法理主权架构下的表象,这使得非洲国家之间的竞争压力在消解的同时,也被其内外的各种非国家行为体所消解。     

汉代统治阶层对民间信仰的限制和引导

汉代民间的鬼神祭祀并非单纯地以祈福禳灾为目的,它还包含有以祝诅等巫术伤害他人,被伤害者甚至有可能是最高统治阶层。祭祀中害人巫术的存在,无疑会对社会治安、统治阶层本身乃至统治秩序的正常运行造成影响。面对这样的挑战,汉代的统治阶层设立严刑峻法、设置祠祝官进行抵御;而统治阶层中的知识分子将先秦以来限制祭祀规模的传统理念用于现实政治,致力于革新鬼神观念、宣扬"淫祀无福",试图在思想上对民众进行引导。     

《清兵卫与葫芦》:对立之中的独立意识——兼论志贺直哉追求独立自我的轨迹

《清兵卫与葫芦》是志贺直哉早期创作的经典代表作品。众多专家学者关注该作品中所体现出来的青年志贺直哉的对立思想,对于青年志贺直哉渴望实现独立自我的人生理想之表达却有所忽略。因此,本文通过文本细读,试对处于人生对立时期的青年志贺直哉其思想中所蕴藏的独立意识进行初步分析,旨在从文学伦理观建构和嬗变的视域下,来阐明志贺直哉追求独立自我的人生思考和行动轨迹。     

Outlier detection in high-dimensional regression model

An outlier is defined as an observation that is significantly different from the others in its dataset. In high-dimensional regression analysis, datasets often contain a portion of outliers. It is important to identify and eliminate the outliers for fitting a model to a dataset. In this paper, a novel outlier detection method is proposed for high-dimensional regression problems. The leave-one-out idea is utilized to construct a novel outlier detection measure based on distance correlation, and then an outlier detection procedure is proposed. The proposed method enjoys several advantages. First, the outlier detection measure can be simply calculated, and the detection procedure works efficiently even for high-dimensional regression data. Moreover, it can deal with a general regression, which does not require specification of a linear regression model. Finally, simulation studies show that the proposed method behaves well for detecting outliers in high-dimensional regression model and performs better than some other competing methods.     

农村医疗减贫效果被低估了吗 ——来自社会空间视角的解释

将社会资本纳入Grossman健康人力资本理论模型,结合灾难性医疗支出概念并构建农村保障社会医疗间接减贫框架,再利用空间Tobit杜宾模型和2014年中国家庭跟踪调查数据(CFPS)对理论假说进行检验.结果表明:(1)农村保障制度对单个家庭医疗减贫作用不显著,但是其通过社区社会空间产生的溢出效应不容忽视.处于同一农村社区社会空间的其他拥有保障的家庭更愿意为病贫家庭给予经济援助,农村保障的医疗减贫溢出效果显著,并且农村社区家庭之间社会空间关系越紧密越有助于医疗减贫溢出效应有效发挥.(2)地缘关系和社会关系对农村医疗减贫的调节作用需要一定的社区收入水平支撑,而且随着大病医疗保险对农村家庭医疗致贫风险分散能力的提高,该调节效应也在不断增强.     

城市退休低龄老年人健康状况对自身劳动参与的影响——基于中国健康与养老追踪调查问卷数据1

健康是影响老年人继续从事劳动的重要因素,并且随着老龄化社会的发展而日渐凸显。分析了从2001年中国进入老龄化社会以来的城市退休低龄老人的情况,根据中国健康与养老追踪调查问卷的数据,从健康的角度考察了女性55岁到65岁,男性60岁到65岁这部分的城市退休低龄老年人,按照总体以及分性别、女性的分年龄段三个角度探究所选取的社会健康状况、一般健康状况和疾病史、生活方式和健康行为、身体功能障碍以及精神和心理等五大类健康指标对样本老年人的劳动参与的影响。     

The disaster relief and social work after the Wenchuan earthquake in Mainland China

ABSTRACT

This paper mainly focuses on the development of disaster social work in Mainland China and the intervention of social work in disaster relief. Before the Wenchuan earthquake and in the initial stage of post-earthquake, disaster social work was mainly based on individual psychotherapy; from the earthquake to the year of 2012 in which post-earthquake recovery and reconstruction was completed, the disaster relief began to emphasise community building and integration, while the basic framework for disaster social work was also established. Social workers begin to explore the new mode of developmental and localised disaster social work. By combining with the practical experiences from disaster social work, this paper tries to highlight the dilemmas confronting disaster relief in Mainland China and put forward some corresponding countermeasures and suggestions, which could improve the future disaster relief system in Mainland China.     

Acceptance of automation manufacturing technology in China: an examination of perceived norm and organizational efficacy

Abstract

With a shift to more automation technology, social acceptance of technology plays an important role in the manufacturing sector. To what extent this occurs, and affects the adoption of technology, has been less researched, but is important in deciding how such technology is introduced, and the nature of the shift from labour-intensive manufacturing to automation. This research applies the revised technology acceptance model (TAM) to examine the impact of social and individual antecedents on the acceptance of automation manufacturing technology. Survey data are collected from 258 Chinese manufacturers. Results suggest that perceived norms significantly affect organizational intention to use automation manufacturing technology both directly and via perceived usefulness; organizational efficacy explains the intention to use via mediating effect of perceived usefulness and perceived ease of use. This research is one of the first extending and applying TAM from individuals to organizations.     

技术与制度交互视角下建筑企业绿色转型驱动的内生机理研究

基于技术与制度交互理论,利用扎根理论识别出15项影响建筑企业绿色转型的内生性因素,采用ISM-MICMAC方法探索影响因素间的作用机理。结果表明,技术与制度相互影响、协同促进建筑企业绿色转型内生驱动力的形成。市场调研、项目管理、财务能力是推动绿色转型的直接因素,也是内生性驱动因素。