基于一致性局部调整算法和DEA的语言偏好决策模型

设计一致性调整算法和计算可靠的方案排序权重向量已成为近年来备受关注的两个重要研究课题。针对决策信息为语言偏好关系的决策问题,提出一种基于一致性局部调整算法和数据包络分析（DEA）方法的语言偏好决策模型。首先,基于局部调整策略设计一种收敛的乘性一致性调整算法,该算法不仅使得调整后的语言偏好关系具有满意乘性一致性,而且能够尽可能多的保存原始决策信息;其次,基于提出的新型语言DEA模型构造一种语言偏好决策模型用以确定方案的排序权重向量,进而得到合理可靠的决策结果。最后,将提出的语言偏好决策模型用于供应商的选择实例,对比分析实验验证了模型的合理性和有效性。     

从管理与文化的关系看中国特色的管理学

管理与文化既有密切的关联性,又有各自差异存在的方式与形态;管理文化是有意识、自觉利用文化合力的管理理念与管理行为。二元文化心理结构形态及其结构中显隐性文化因子运动取向、文化因子作用的增强是文化及亚文化激励或制约管理发展的机理。管理的二元性结构及其二元结构的运行方式,决定了管理递进与文化构向之过程递进结构、转化积淀结构的实现方式。管理科学和系统论的核心是结构观,而中国文化的核心是整体观,承认系统内和系统外的动态冲突,由动态不均衡、矛盾运动到悖论均衡关系的结构存在,强调结构运动与转化过程的结构本质和结构价值,是管理科学与中国文化的相容原则。     

Weak Limit of the Sample Extremal Quotient

Necessary and sufficient conditions are obtained for the weak convergence ( W →) of the sample extremal quotient of independent and identically distributed random variables as the number of observations tends to infinity. The paper fully characterizes the class of possible non-degenerate limit distribution functions of the extremal quotient, under general conditions.     

Priority Rules and Other Asymmetric Rationing Methods

In a rationing problem, each agent demands a quantity of a certain commodity and the available resources fall short of total demand. A rationing method solves this problem at every level of resources and individual demands. We impose three axioms: Consistency—with respect to variations of the set of agents—Upper Composition and Lower Composition—with respect to variations of the available resources. In the model where the commodity comes in indivisible units, the three axioms characterize the family of priority rules, where individual demands are met lexicographically according to an exogeneous ordering of the agents. In the (more familiar) model where the commodity is divisible, these three axioms plus Scale Invariance—independence of the measurement unit—characterize a rich family of methods. It contains exactly three symmetric methods, giving equal shares to equal demands: these are the familiar proportional, uniform gains, and uniform losses methods. The asymmetric methods in the family partition the agents into priority classes; within each class, they use either the proportional method or a weighted version of the uniform gains or uniform losses methods.