三阶随机占优准则在证券选择中的应用

通常可以用分布函数和分住数函数描述随机占优准则,Man-Chung Ng列举的两个例子说明在三阶随机占优条件下用两种方法得到的结论是不一致的,这与Levy的观点相反。该文分别将这两种方法描述的三阶随机占优准则用于上海证券市场的基金选择,发现用两种方法在应用中得到的结论并不总是一致的。由此验证用Levy提出的分位数方法描述的随机占优准则进行实证研究是不正确的,一阶和二阶条件除外。     

质量生态学研究(5)--生态质量管理系统评价

利用生态学思想及可持续发展理念，建立生态质量管理评价的思路和评价原则，根据构成生态质量管理系统的经济、环境、社会三个方面，建立相应的评价指标体系，综合反映生态质量管理水平。     

现代企业委托代理问题的“中庸之道”

孔子提出的“中庸之道”从根本上说是一种管理思想和方法,它要求人们作任何事情都要遵循适度原则,这对现代企业中的委托代理问题同样具有重要意义。在这一思想方法的指导下,本文论证了解决委托代理问题的最优激励机制设计,寻找激励与监督的均衡点。     

物流企业基于互联网的营销策略探讨

文中从物流企业基于互联网营销的优势入手,从四个方面分析了物流企业基于互联网营销存在的问题;最后从思想上重视网络营销,物流企业营销网站建设策略,物流网站推广策略,利用互联网开展物流合作营销等方面探讨了物流企业基于互联网的营销策略。     

Inventories, Manufacturer Returns Policies, and Equilibrium Price Dispersion under Demand Uncertainty

Returns policies can prevent a manufacturer's product from being discounted. Such discounting discourages inventory holdings, and can deny adequate retail representation to products with uncertain demand. We demonstrate that returns are not simply a substitute for resale price maintenance, but can instead be employed to support a desirable degree of price dispersion at retail. Surprisingly, optimal return policies depend only on market demand functions and marginal production costs. The manufacturer need not know the distribution of demand uncertainty for its product, but can instead rely on retailers to order appropriately. Our results generalize to oligopoly settings.     

跨国公司在华投资的集聚效应分析与对策

改革开放以来,我国引进的外商直接投资由以中小企业为主逐渐转向以大型跨国公司为主,跨国公司对华投资规模和数量迅速扩大.由美国《财富》杂志公布的世界500家最大跨国公司已有400多家在我国投资.可以预见,随着经济全球化的发展和我国加入世贸组织,进入中国的跨国公司将越来越具规模化.国内学对这种现象及其对我国经济发展的影响进行了大量研究.但国内学很少对跨国公司之间投资的系统性和关联性即跨国公司的集聚效应进行分析.     

刍议契约会计与衍生金融工具的确认

契约会计的发展为衍生金融工具在财务报表内进行确认提供了理论依据。会计确认是一个过程,意味着某些项目的确认并不是一次完成。衍生金融工具交易是一个过程,其确认要经过初始确认、后续确认和终止确认。供应链契约所涉及的权利与义务具有“确定性”的特点,对其是否可在签约时确认及对会计确认问题的影响值得进一步探讨。     

Inferences about the parameters of a time series model with changing variance

Summary We consider the problem of making inferences about the parameters of a time series model when there is the possibility of a discrete variance change at an unknown time point. For this we obtain the posterior distributions of the parameters and of the variance ratio.     

仓库信息化建设发展战略探讨

以仓库信息化建设与发展为内容,提出了在仓库信息化建设中,应建立军民一体化战略、纵向一体化战略、横向一体化战略、仓库内部一体化战略,建立与实现高效协调、快速反应的军事物流运作系统。     

An Integrative Framework for Measuring the Extent to which Organizational Variables Influence the Success of Process Improvement Programmes

abstract    Studies on the three types of process improvement programmes (Continuous Improvement, Reengineering and Benchmarking) have appeared many times in the literature. These studies suggest that certain organizational variables act as enablers and their presence or absence can significantly influence success rates. Such studies have tended to examine companies where a single programme has been implemented. In contrast, this paper examines a sample of companies who have experienced all three programmes. Our aim is to compare and contrast each programme's impact on firm performance and identify which organizational variables are common and which are programme-specific enablers of success. We build and test an integrative framework to support our analysis. Our study found that: (1) Reengineering delivered the greatest impact on performance; (2) executive commitment was needed to make this happen; (3) strategic alignment was the major influence on the success rate of Reengineering and Continuous Improvement programmes; and (4) employee empowerment was necessary for each programme to work effectively.