An L1-type estimator of multivariate location and shape

The main goal of the paper is to specify a suitable multivariate multilevel model for polytomous responses with a non-ignorable missing data mechanism in order to determine the factors which influence the way of acquisition of the skills of the graduates and to evaluate the degree programmes on the basis of the adequacy of the skills they give to their graduates. The application is based on data gathered by a telephone survey conducted, about two years after the degree, on the graduates of year 2000 of the University of Florence. A multilevel multinomial logit model for the response of interest is fitted simultaneously with a multilevel logit model for the selection mechanism by means of maximum likelihood with adaptive Gaussian quadrature. In the application the multilevel structure has a crucial role, while selection bias results negligible. The analysis of the empirical Bayes residuals allows to detect some extreme degree programmes to be further inspected.     

左派王学与儒学的近代转型

左派王学是阳明后学的殿军,这一将王阳明心学思想推向极致的思想流派,以良知现成无待、当下即是为立论的原点,并沿着心学自我成圣论的思想理路,将率性造命的狂者精神发展为带近代色彩的救世意识.这种精神开启了儒学史上一个全新的局面,并构成了儒学现代性转型的某种信号.     

Natural and artificial computing and reasoning in economic affairs

During a century or so, good reasoning in economic affairs was reduced to the search of computable algorithms for Expected Utility Optimization: but is the “Principle of least Action”, which was so powerful for guiding the researches in Physics and Natural Sciences as relevant as expected for guiding the good use of “reason in human affairs”? The discussion of the theoretical and practical weaknesses of the Paradigm of Expected Utility Optimization proposed since forty years notably by H. A. Simon, leads to the formulation of another paradigm, probably more relevant for the guidance of researches in economics and management affairs: “the Principle of Intelligent Action”, focus on the property of symbols computation systems. The general framework of Plausible Rationality, as established by G. Polya permits the formulation of programmable heuristics (or production rules) which can be expressed in terms of artificial symbolic computations. A more General Research Program is now open to research in Economic Reasoning by the developments of Artificial Intelligence and Cognitive Sciences: the design of relevant economic heuristics guiding the Decision Making Processes.     

宁波与现代国际著名港城国民经济信息化比较研究

文章以笔者前期研究成果和国际通行的理论为依据，通过比较计算宁波与香港的国民经济信息化指数，从一个方面分析了现代国际著名港城国民经济信息化的实际情况及对宁波的启示。     

Support Between Siblings and Between Friends: Two Worlds Apart?

This research examines whether siblings and friends resemble each other in supportive behavior. Using a Dutch national sample of 6,289 individuals containing 12,578 relationships with siblings and friends, we investigated the relative importance of gender composition, geographical proximity, relationship quality, and contact frequency for support exchange with siblings and friends. Results show that, controlling for other influences, siblings exchange more practical and less emotional support. High relationship quality and contact frequency are positively related to exchange of emotional support with siblings more than with friends, as is—unexpectedly—living further away. Fewer differences exist in practical support exchange. In conclusion, siblings and friends are similar with regard to practical support but different when it comes to emotional support.     

Should I Stay or Should I Go? Explaining Turnover Intentions with Organizational Identification and Job Satisfaction*

The social identity approach is a powerful theoretical framework for the understanding of individuals' behaviour. The main argument is that individuals think and act on behalf of the group they belong to because this group membership adds to their social identity, which partly determines one's self‐esteem. In the organizational world, social identity and self‐categorization theories state that a strong organizational identification is associated with low turnover intentions. Because identification is the more general perception of shared fate between employee and organization, we propose that the relationship between identification and turnover will be mediated by job satisfaction as the more specific evaluation of one's task and working conditions. In four samples we found organizational identification feeding into job satisfaction, which in turn predicts turnover intentions.     

Ideal Values and Counter‐ideal Values as Two Distinct Forces: Exploring a Gap in Organizational Value Research

Motives and values at work have long been key topics of business and management studies. In a focused review of the literature on the nature of human values, this paper identifies a disconnect with the literature on human motivation, despite the otherwise inherent relatedness of the two fields. Specifically, extant theory and research have conceptualized values generally in terms of ideals, namely desired end‐states that individuals strive to approach. Although values, by this definition, express motivational concerns, theories of human motivation suggest that there are two forces to consider, i.e. approach and avoidance motivation. By applying this ‘two forces’ perspective to value research, this paper identifies a gap in the literature on values: namely, the idea that individuals are also influenced by counter‐ideal values, i.e. end‐states that they deliberately seek to avoid. The identification of this gap opens up new opportunities for value research in general and organizational value research in particular. To pave the way for future research, this paper critically discusses the few studies that have taken first steps in that direction and outlines research questions that may follow for issues such as employer branding and person–organization fit. This paper closes by providing suggestions on how to tackle the issue in organizational practice.     

OUTSOURCING WHEN INVESTMENTS ARE SPECIFIC AND INTERRELATED

Using the universe of large Canadian manufacturing firms in 1988 and 1996, we investigate to what extent outsourcing patterns concord with the predictions of a simple property rights model. The unique availability of disaggregate information on outputs as well as inputs permits the construction of a detailed measure of vertical integration. We rely on five measures of technological intensity to proxy for investments that are likely to be specific to a buyer–seller relationship. A theoretical model that allows for varying degrees of investment specificity and interrelatedness—externalities between buyer and supplier investments—guides the analysis. Property rights predictions on the link between investment intensities and optimal ownership are strongly supported, but only for transactions with low interrelatedness. High specificity and low risk of appropriation strengthen the predictions in the model and in the data.     

Psychosocial correlates and depression in Vietnamese adolescents

This paper reports findings on depression in a sample of 38 Vietnamese adolescents. Hierarchical regression analysis was conducted to examine the empirical use of psychosocial variables and stressful life event measures in predicting depression. Self-esteem (Esteem) and SLEs scales were entered in blocks and explained for 68 percent of the total variance in depression (CES-D scale). Esteem accounts for 30 percent of the overall variance. The SLE block contributes another 39 percent above and beyond in the prediction of depression. Death, PTSD, and Peer stress scales were significant predictors (p<.01). The mean CES-D depression score was 16.32 (SD=10.95). A cutoff score of 16 was used to classify those adolescents who were depressed from those who were not depressed (Radloff, 1977).