信息技术、团队生产及底层员工生产组织设计

团队是企业安排底层员工生产的重要组织形式. 在生产过程中信息的产生和交流的基础 上建立了底层员工作为单个团队生产的模型. 模型分析表明, 单个团队的产出随着团队规模的 增大而增大, 但是增加团队规模的边际产出是递减的. 改进团队所运用的信息技术可以提高团 队产出的上限. 当底层员工人数众多时, 员工容易陷入信息包围之中. 分析了对底层员工进行 团队分组的必要性, 并在单个团队生产模型基础上建立了团队分组模型, 讨论了信息技术的进 步对底层员工团队小组最优规模的影响.     

间接经济效益的波及效应和摄动效应分析

直接经济效益和经济效益传递系数两个变量的变动都会引起国民经济间接经济效益总 量的变动, 前者称为波及效应, 后者称为摄动效应. 本文对这两种效应进行了深入分析和探讨, 并利用投入产出表提供的数据, 分析了1987- 1997 年四川省国民经济的波及效应和摄动效 应. 提出了一种波及效应定位图的方法, 对各部门的波及效应进行了分类. 分析发现: 在10 年 中的不同时期, 促进国民经济间接经济效益总量增长的主要因素是不同的, 在前期是摄动效 应, 在中期是波及效应, 在后期是摄动效应和波及效应共同作用的结果     

向量随机波动模型的共因子研究

提出了向量随机波动模型波动协同持续(common persistence in vo lat ility) 的定义, 证明 了波动协同持续与协整(co in tegrat ion) 两者之间的等价关系; 同时, 基于Stock2W at son 与 Gonzalo2Granger 因子分解, 给出了协同持续因子(common persisten t facto r) 的两种不同的表 达形式, 证明了两者间存在着协整关系. 文中讨论了在隐因子过程为VAR (1) 的假定下, 协同 持续因子的表达以及协同持续因子存在的必要条件     

资金时间价值因素对延迟策略选择的影响研究

研究资金时间价值和不同的产品价值构成对延迟策略选择的影响问题. 首先定义了资金 时间价值的概念, 并按产品价值构成划分了产品的类型, 明确了延迟策略的种类. 然后建立了 不同延迟策略下, 在考虑资金时间价值因素和不考虑资金时间价值因素时的产品成本模型. 在 此基础上, 针对不同价值构成的产品, 分析其最优的延迟策略, 说明了资金时间价值因素对延 迟策略选择的影响. 从而为企业更好地利用延迟策略降低成本, 增强竞争力提供了理论基础.     

虚企业与ERP 软件关系研究

简述国内外ERP的发展过程,提出虚企业的概念,指出它与ERP软件系统的关系,揭示ERP软件中的模型与BPR之间的内在联系,探讨其结构的演变过程,分析引入该概念的意义和对信息系统研究的影响,如独立于现有企业实体的企业理论模型的研究,优化的企业流程、企业构架的建立;传统信息系统开发方式的改变,不应仿照原企业的构架建立企业管理信息系统;企业管理信息系统实施方式的改变,强调理论模型对信息化的企业管理及其实体结构的影响;最后指出虚企业发展的过程为软科学的研究提供了一条思路.     

知识型企业的竞争战略

从知识的层次、内容和形态三个维度定义了企业的知识空间, 在此空间中通过评估职能 层知识能力并与竞争对手进行比较, 得到的知识能力位势图反映了职能型组织的竞争位势, 最 后针对不同知识能力位势的组织给出相应的竞争策略.     

Crea-Space — eine Methode zur Entwicklung des kreativen Potenzials in Teams und größeren Gruppen

Crea-space — a method to develop the creative potentials in teams and larger groups Crea-Space is a kind of group-intervention, suitable for mid-size groups. The technique is derived from Open Space and offers an instrument to generate creativity in the process of elaborating future-visions. The technique consists of five steps, step one to four provide a frame for opening up the creative potential of the group, the fifth is a commitment for the next steps towards realization of the creative ideas.     

Sociology of “primitive societies,” evolutionism,and Africa

Sociology of primitive societies has revised its earlier views about kinship, lineage, or lineage mode of production. It attempts now to show that lineage did not pervade African precolonial societies and that other relations, such as capitalist and class relations, were also present. This article seeks to reestablish, contrary to the revisionist view, the centrality of lineage in African precolonial societies to allow for a paradigmatic shift that repudiates evolutionism and brings precolonial societies back to the center of the African debate. Because in such a reoriented debate Africa ceases to be marginalized and on the fringes of other historical experiences, the shift allows, paradoxically, the integration of scholarship on Africa into universal social theory.     

Pflege der Eltern – Ein europäischer Vergleich*

Elderly people are predominantly cared for by family members. However, not every parent in need is cared for by a child, and not all family members are involved in care. Which factors influence the provision of care? Do European countries differ in regard to intergenerational care, and what are the reasons for these differences? The empirical analyses, based on the Survey of Health, Ageing and Retirement in Europe (Austria, Belgium, Denmark, France, Germany, Greece, Italy, the Netherlands, Spain, Sweden, and Switzerland), show that various factors influence care by children: individual characteristics of parents and children, family structures and cultural-contextual factors, including welfare institutions. Intergenerational help occurs more often in Southern and Central European countries, where children are legally obliged to support parents in need. At the same time, in Europe professional home care services enable adult children to pursue their personal plans beyond care obligations.     

A non-parametric maximum test for the Behrens–Fisher problem

Non-normality and heteroscedasticity are common in applications. For the comparison of two samples in the non-parametric Behrens–Fisher problem, different tests have been proposed, but no single test can be recommended for all situations. Here, we propose combining two tests, the Welch t test based on ranks and the Brunner–Munzel test, within a maximum test. Simulation studies indicate that this maximum test, performed as a permutation test, controls the type I error rate and stabilizes the power. That is, it has good power characteristics for a variety of distributions, and also for unbalanced sample sizes. Compared to the single tests, the maximum test shows acceptable type I error control.