A Multiobjective Approach and Empirical Application of Sales-Organization Design

This paper addresses the critical issue of determining the appropriate structural design of a sales organization. We propose a new approach for organizing the selling function using multiobjective modeling techniques. The proposed approach considers the situational characteristics under which the sales organization operates, trade-offs among multiple sales-effectiveness criteria, and the “fit” between the situational characteristics and the structural dimensions (i.e., the structure-contingency relationships). Using data collected from sales branches of brokerage firms, we develop appropriate structural designs for a sales organization using the proposed procedure. The paper concludes by outlining the various decision-making implications of the approach.     

最终控制人性质、两权分离度与机构投资者持股——兼论不同类型机构投资者的差异

上市公司所有权与控制权的严重分离会影响其公司价值,进而会影响投资者的投资决策.本文以2004-2007年我国A股上市公司为研究样本,考察了上市公司两权分离状况对机构投资者总体和各类机构投资者持股决策的影响.研究发现,最终控制人所有权比例越高,两权分离度越小时,机构投资者(主要是证券投资基金)持股比例越高;而且两权分离度指标对机构投资者持股决策的影响在最终控制人为非国有性质的企业中表现更为明显.本文的研究结论表明.我国机构投资者总体上能够做到自我利益保护,在投资者保护方面发挥积极的作用,但是这种作用的发挥在各个类型机构投资者中存在显著差异.     

生命周期视角下的股权制衡与企业价值

本文将企业生命周期作为约束条件纳入股权制衡与企业价值的关系分析。在划分上市公司企业生命周期和最终控制人性质的基础上,匹配2004-2006年符合股权制衡与一股独大条件的对应样本,考察股权制衡和一股独大的股权安排模式与企业价值的关系。研究发现,处于成熟期时,股权制衡的上市公司企业价值显著高于一股独大的上市公司企业价值。由于未获得成熟期的民营企业样本,因此成熟期最终控制人性质对企业价值的影响差异无法验证。处于成长期时,一股独大的上市公司企业价值均值高于股权制衡的上市公司企业价值,但在统计上并不显著。而且在成长期最终控制人性质并未显著影响制衡与否与企业价值的关系。     

Interactive fuzzy goal programming for multi-objective transportation problems

This paper presents an interactive fuzzy goal programming approach to determine the preferred compromise solution for the multi-objective transportation problem. The proposed approach considers the imprecise nature of the input data by implementing the minimum operator and also assumes that each objective function has a fuzzy goal. The approach focuses on minimizing the worst upper bound to obtain an efficient solution which is close to the best lower bound of each objective function. The solution procedure controls the search direction via updating both the membership values and the aspiration levels. An important characteristic of the approach is that the decision maker's role is concentrated only in evaluating the efficient solution to limit the influences of his/her incomplete knowledge about the problem domain. In addition, the proposed approach can be applied to solve other multi-objective decision making problems. The performance of this solution approach is evaluated by comparing its results with that of the two existing methods in the literature.     

离心管摩擦桩的设计

本文引用了优化理论的基本概念,着重论述了离心管摩擦桩的优点。     

An approachto the machine layout problem in a cellular manufacturing environment

The model of the machine layout problem MLP in a cellular manufacturing environment attains additional dimensions as it should satisfy the qualitative interconnections between the machines and the location restrictions of an existing factory environment. A new MLP model based on merging pre-emptive goal programming and simulated annealing has been developed for machine layout in cells. This model seeks to find feasible solutions by addressing practical issues of implementation as well as reducing the total travel distances for parts between machines. The new model can also be applied to facility layout problems FLP . The computational work is demonstrated by applying the model to problems of both quantitative and qualitative types, and has produced encouraging results. This model is particularly attractive for layout problems with realistic goals and constraints. To show the performance of the model in handling real-world problems, a practical example has been introduced and solved using the proposed model.     

Batch process control using QFD matrices and simulation

An intuitive method for providing decision support of production control activities is proposed in which qualitative management information is represented by way of Quality Function Deployment matrices, while quantitative information is collected in the form of a simulation model of the plant. The quantitative-to-qualitative transform is provided by way ofgoal programming and fuzzy decision rules-where the latter naturally complements the symbolic method of representing information.     

Goal directed benchmarking for organizational efficiency

In this paper, we extend the standard data envelopment analysis (DEA) model to include longer term top management goals. This extension is in recognition of the fact that benchmarking for decision making units (DMUs) is more than a purely monitoring process, and includes a component of future planning. The new model uses a goal programming structure to find points on the efficient frontier which are realistically achievable by DMUs, but at the same time achieving a closer approach to long term organizational goals (as distinct from the local performance of individual DMUs). Consideration is given to the possibility of adjusting constraints on the DMU by investment in extended inputs or new technologies, in which case minimization of associated investment costs becomes an additional management objective.     

On the Problem of Compromise Allocation in Multi-Response Stratified Sample Surveys

In stratified sample surveys, the problem of determining the optimum allocation is well known due to articles published in 1923 by Tschuprow and in 1934 by Neyman. The articles suggest the optimum sample sizes to be selected from each stratum for which sampling variance of the estimator is minimum for fixed total cost of the survey or the cost is minimum for a fixed precision of the estimator. If in a sample survey more than one characteristic is to be measured on each selected unit of the sample, that is, the survey is a multi-response survey, then the problem of determining the optimum sample sizes to various strata becomes more complex because of the non-availability of a single optimality criterion that suits all the characteristics. Many authors discussed compromise criterion that provides a compromise allocation, which is optimum for all characteristics, at least in some sense. Almost all of these authors worked out the compromise allocation by minimizing some function of the sampling variances of the estimators under a single cost constraint. A serious objection to this approach is that the variances are not unit free so that minimizing any function of variances may not be an appropriate objective to obtain a compromise allocation. This fact suggests the use of coefficient of variations instead of variances. In the present article, the problem of compromise allocation is formulated as a multi-objective non-linear programming problem. By linearizing the non-linear objective functions at their individual optima, the problem is approximated to an integer linear programming problem. Goal programming technique is then used to obtain a solution to the approximated problem.     

理想的量刑制度

根据1984的量刑改革法案,美国量刑委员会为联邦刑事法律系统制定了量刑指南。但该指南既没有满足法案的期待,也没有提供一个全面性的、可操作性的制度。一个现代的、有原则的和可操作的量刑制度,应当明确首要的目标和必要的起草原则;还应当构建一个可向理想性制度转化的可操作性制度,并鼓励这个制度保持其运用的内在一致性以及能够不断的改良。