The Bell Curve in Psychological Research and Practice: Myth or Reality?

The expression “the bell curve” designs both a kind of statistical distribution and the title of a famous and controversial book by Herrnstein and Murray. The first is so attractive that the second refers to it to give more credibility to its questionable theories on intelligence. The point is that, during the 20th century, the bell curve has assumed a more and more important role in psychological research and practice and have become both a reality and a myth. In the first case (reality) we can assist to appropriate applications of a real useful statistical concept. In the second (myth) we can have two kinds of attitudes: one attitude is typical of those researchers who search for normality in all their data and variables, just as Parsifal used to search for the Holy Graal (we call this “the Parsifal attitude”); the other is typical of those researchers who give normality for granted and act as if it were a Platonic Idea (we call this “the Plato attitude”). The article discusses the role of the normal distribution in psychological research and practice and shows how it can be dangerous to treat the bell curve as a God or an Idol.     

我国第三方物流发展现状及趋势

传统的物流企业大多是自己建仓库，办车队，万事不求人的同时大大增加了成本。专家们提出，物流企业发展应该走专业化道路，第三方物流企业在中国已经崭露头角，并且显示出强大的生命力。本文介绍了第三方物流的含义及产生原因，指出了第三方物流的作用，并且分析了预测了国内第三方物流的发展现状及未来走向，本文认为，第三方物流前景看好。     

建立现代信用担保体系改善中小企业融资环境

中小企业是国民经济的重要组成部分。融资难问题极大地制约着中小企业的发展。发达国家为有效解决这一难题．采取多种适合中小企业融资特点的融资方式。其中．建立中小企业信用担保体系是世界各国扶持中小企业发展的通行作法．对我国解决中小企业融资难问题，有较大的借鉴作用。     

基于税基差异分析的企业所得税与会计制度协调与对策

所得税法与会计制度的差异是由税法目标与会计目标的分离所决定的,比较、分析、研究二者间的差异亦具有十分重要的意义。本文从理论上归纳出会计制度与企业所得税法间的差异,探讨了企业所得税及其与会计制度差异存在的问题,并对所得税改革与会计制度协调提出政策性建议。     

岩爆的发生机理及防治措施

岩爆是隧道主要地质灾害之一,给施工带来不利的影响,秦岭终南山经理部在岩爆防治上作了大量的探索和尝试,并取得了明显的效果,希望能为以后的工程提供一些有益的参考。     

搞好《建筑工程概预算》课程教学的思考

根据《建筑工程概预算》课程的特点,结合教学实践经验,对如何搞好该课程的教学做了一些思考：强调课程重要性,使学生明确课程学习的意义;精心挑选教材,备足教学参考资料;注重培养学生分析、解决问题的能力和自学能力;开展课程设计教学,提高教学质量;充分发挥教师的主导作用,培养“双师型”的教师;教学中理论联系实际,支持、鼓励学生参加执业资格证考试。     

仓储企业运营能力评价研究

文章通过综合考虑仓储企业的规模、效率,构建了一套仓储企业运营能力评价的指标体系,并针对这一复杂的多属性决策问题,提出了用逼近于理想解的排序方法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)和层次分析法(AHP)结合的方法对仓储运营能力进行评价。     

Outsourcing and trade in a spatial world

This paper provides an analysis of outsourcing and trade in a spatial model à la Hotelling. In this setting, we discuss the trade-off between transport-cost-related disadvantages and outsourcing-related production cost advantages of a large economy and we investigate how the existence of national transport costs influences both the structure of industrial production and the pattern of final goods trade. In addition, the model gives a rich picture of the possible welfare effects of trade liberalization. In particular, we show that a final goods exporting country definitely gains from economic integration, while a final goods importing country may lose. Finally, when lowering domestic outsourcing activities, trade liberalization may reduce world welfare, even if pro-competitive effects lead to a decline in consumer prices.     

论中小企业技术创新

我国中小企业技术创新活动具有多样性和广泛性,它们的技术创新在许多行业占据了主导地位,研究中小企业的技术创新问题对经济发展和社会进步具有重要意义。文章围绕中小企业的技术创新概念、企业与技术创新的关系、内外部环境分析进行讨论,提出新形势下中小企业技术创新的对策。     

国外资信评级的相关研究述评

国外资信评级机构已经存续了近百年,在资本市场上发挥着重要的作用。关于资信评级的研究也已积累了丰富的成果,内容涉及资信评级的作用、决定因素、信息价值以及级别的可比性一致性等。文章回顾并评论了国外有关资信评级的研究成果,并在此基础上提出了我国资信评级的理论研究应关注的问题。