The role of character in ethical leadership research

The study of character is a legitimate and essential topic for the analysis of leadership in organizations. We undertake three key objectives in this article to stimulate meaningful dialogue. First, a brief historical overview of the extant body of literature on character is provided. Second, working definitions of character and character-based leadership are introduced. Third, new directions for organizational scholars interested in examining the role of character-based leadership in both their research and teaching domains are suggested.     

基于创新导向的风险投资领域公共政策

风险投资对促进创新活动具有重要作用,然而风险投资的健康发展需要政府公共政策的干预。为此从公共政策、风险投资与创新三者之间的关系入手,从创新的需求和供给角度建立模型,分别研究了创新产品市场和风险投资市场,并运用均衡分析方法研究了整个市场的均衡状态,根据社会效用最大化目标,分析政府最优公共政策组合及其对社会福利的影响。因此,这种最优政策工具组合可供政府制定相关政策时参考。     

Is Stakeholder Corporate Governance Appropriate in Russia?

Journal of Management and Governance - Alternative forms of disciplining the actionsof senior enterprise managers can becharacterized as shareholder or stakeholdergovernance. This paper analyzes...     

An Empirical Test of the Relative Validity of Expert and Lay Judgments of Risk

This article investigates how accurately experts (underwriters) and lay persons (university students) judge the risks posed by life-threatening events Only one prior study (Slovic, Fischhoff, & Lichtenstein, 1985) has previously investigated the veracity of expert versus lay judgments of the magnitude of risk. In that study, a heterogeneous grouping of 15 experts was found to judge, using marginal estimations, a variety of risks as closer to the true annual frequencies of death than convenience samples of the lay population. In this study, we use a larger, homogenous sample of experts performing an ecologically valid task. We also ask our respondents to assess frequencies and relative frequencies directly, rather than ask for a "risk" estimate--a response mode subject to possible qualitative attributions-as was done in the Slovic et al. study. Although we find that the experts outperformed lay persons on a number of measures, the differences are small, and both groups showed similar global biases in terms of: (1) overestimating the likelihood of dying from a condition (marginal probability) and of dying from a condition given that it happens to you (conditional probability), and (2) underestimating the ratios of marginal and conditional likelihoods between pairs of potentially lethal events. In spite of these scaling problems, both groups showed quite good performance in ordering the lethal events in terms of marginal and conditional likelihoods. We discuss the nature of expertise using a framework developed by Bolger and Wright (1994), and consider whether the commonsense assumption of the superiority of expert risk assessors in making magnitude judgments of risk is, in fact, sensible.     

全球化语境下的身份认同与现代性追寻——关于聂茂《民族寓言的张力》及其他

聂茂先生的《民族寓言的张力》,站在全球化理论前沿,结合中国的特殊国情和本土文化的具体语境,借助于西方话语体系对中国新时期文学进行解读。其既对各个文学思潮中的经典文本进行“解码”,又对各个时期创作群体的特征进行“把脉”式的“阐释”,希望借此获得“历时”的“深度”,一种“共时”的“广度”,以及一种立体的“厚度”。聂茂先生通过这种精细解读,将一堆堆隐藏在材料之下的作品原义最大限度地呈现出来了。在他看来,中国新时期文学创作群体的共同努力,不仅冲击了第一世界文化霸权的“自在预想”,而且修补、充实、拓展和丰富了西方话语体系之本身,中国新时期文学在“世界文学”的大家庭中有着“不可轻忽”的意义。     

Semi-parametric hybrid empirical likelihood inference for two-sample comparison with censored data

Two-sample comparison problems are often encountered in practical projects and have widely been studied in literature. Owing to practical demands, the research for this topic under special settings such as a semiparametric framework have also attracted great attentions. Zhou and Liang (Biometrika 92:271–282, 2005) proposed an empirical likelihood-based semi-parametric inference for the comparison of treatment effects in a two-sample problem with censored data. However, their approach is actually a pseudo-empirical likelihood and the method may not be fully efficient. In this study, we develop a new empirical likelihood-based inference under more general framework by using the hazard formulation of censored data for two sample semi-parametric hybrid models. We demonstrate that our empirical likelihood statistic converges to a standard chi-squared distribution under the null hypothesis. We further illustrate the use of the proposed test by testing the ROC curve with censored data, among others. Numerical performance of the proposed method is also examined.     

一类无平方因子数的k次方和

拓广了无平方因子数ｋ次方和的结果，得到一类无平方因子数ｋ次方和的估计式．     

CONVERGENCE AND PREDICTION OF PRINCIPAL COMPONENT SCORES IN HIGH-DIMENSIONAL SETTINGS

A number of settings arise in which it is of interest to predict Principal Component (PC) scores for new observations using data from an initial sample. In this paper, we demonstrate that naive approaches to PC score prediction can be substantially biased towards 0 in the analysis of large matrices. This phenomenon is largely related to known inconsistency results for sample eigenvalues and eigenvectors as both dimensions of the matrix increase. For the spiked eigenvalue model for random matrices, we expand the generality of these results, and propose bias-adjusted PC score prediction. In addition, we compute the asymptotic correlation coefficient between PC scores from sample and population eigenvectors. Simulation and real data examples from the genetics literature show the improved bias and numerical properties of our estimators.     

高校图书馆学科馆员制度探析

高校图书馆的服务对象主要是校内各学科专业人员,他们对文献信息的需求特点是层次高、专业性强、范围广、内容新。针对用户个性化的信息需求,图书馆应及时调整服务的角度和内容,从以文献为单元深入到以信息为单元,从面上的服务深入到点的服务。学科馆员制度的建立,将传统的综合服务演变为分学科、分专业、分领域的对口服务,在图书馆和学科部门之间形成一个动态、交互的信息服务模式,有利于图书馆深化信息服务层次,提升信息服务水平。