Business Legitimacy among Business Students in the United States, Great Britain, and South Africa

This study compares attitudes toward business legitimacy in three countries. Positive attitudes toward business legitimacy exist when there is a congruence between organizational activities and societal expectations. Businesses are concerned about the extent to which negative attitudes toward business legitimacy will lead to increased government regulation. The results suggest that business students in all three countries are similar in their attitudes toward business legitimacy; however, blacks have more negative attitudes toward business legitimacy than do whites. This study resulted in the validation of a scale that can be used to measure attitudes toward business legitimacy on a cross-cultural basis. Business legitimacy is a major concern in South Africa as the predominately white business community seeks to give the emerging black majority a stake in the existing economic system. This revised version was published online in August 2006 with corrections to the Cover Date.     

Graphical methods for comparing confounding in two or more designs

In many circumstances it is necessary to design an experiment with partial confounding of parameter estimates. In this situation, one would like to have tools to assess and compare candidate designs graphically. In this paper we discuss two graphical representations of design properties, and illustrate their application with two examples.     

Building blocks for graphical belief models

The graphical belief model is a versatile tool for modeling complex systems. The graphical structure and its implicit probabilistic and logical independence conditions define the relationships between many of the variables of the problem. The graphical model is composed of a collection of local models:models of both interactions between the variables sharing a common hyperedge and information about single variables. These local models can be constructed with either probability distributions or belief functions. This paper takes the latter approach and describes simple models for univariate and multivariate belief functions. The examples are taken from both reliability and knowledge representation problems.     

儿童游戏的权利——世界范围内游戏在儿童生活中重要性的考察（连载之二）

本文系统考察世界范围内游戏在儿童生活中重要性,将儿童的游戏权看做1989年联合国《儿童权利公约》（CRC）第31条中的一个独立的权利,旨在为世界范围内和整个联合国《儿童权利公约》框架内探究“儿童的游戏权”提供理论基础,并提出人们为何要承认、尊重儿童游戏权,并阐明将游戏提升为一种儿童权利的理论依据,主张全面深刻理解儿童游戏权利的丰富内涵,特别是作为自我保护方式及作为参与日常生活方法的游戏的社会价值,应积极创设提供儿童游戏发生的条件,努力推进实现儿童的游戏权利。