电子商务经营模式的演化与创新

经营模式是一个公司赖以生存的经营方法,企业通过它在价值链中的位置来赚钱。电子商务经营模式是企业开展电子商务的方式,企业通过这种方式持续经营并获得利润。它经历了一个不断演化的过程,内容涉及企业的战略、结构、流程和技术。目前,电子商务经营模式正从产品创新、客户关系、基础设施、财务管理等方面进行创新。     

On Rao score and PearsonX 2 statistics in generalized linear models

The identity of the Rao score and PearsonX ² statistics is well known in the areas where the latter was first introduced: goodness-of-fit in contingency tables and binary responses. We show in this paper that the same identity holds when the two statistics are used for testing goodness-of-fit of Generalized Linear Models. We also highlight the connections that exist between the two statistics when they are used for the comparison of nested models. Finally, we discuss some merits of these unifying results. Work financially supported by cofin. MIUR grants 2000 and 2002.     

普通高校大学体育"三自主"选课模式的构建

在分析我国普通高校体育课教学现状的基础上,根据新颁布的《全国普通高等学校体育课程教学指导纲要》精神,结合多年体育教学改革实践,提出了高校应构建以人文为特色的高校体育课程体系,实施“三自主”选课机制,并针对“三自主”选课机制,设计出网上选课及管理的具体实施办法,为普通高校提供一定的参考价值。     

Physiologically Based Liver Modeling and Risk Assessment

Because of the inherent complexity of biological systems, there is often a choice between a number of apparently equally applicable physiologically based models to describe uptake and metabolism processes in toxicology or risk assessment. These models may fit the particular data sets of interest equally well, but may give quite different parameter estimates or predictions under different (extrapolated) conditions. Such competing models can be discriminated by a number of methods, including potential refutation by means of strategic experiments, and their ability to suitably incorporate all relevant physiological processes. For illustration, three currently used models for steady-state hepatic elimination--the venous equilibration model, the parallel tube model, and the distributed sinusoidal perfusion model--are reviewed and compared with particular reference to their application in the area of risk assessment. The ability of each of the models to describe and incorporate such physiological processes as protein binding, precursor-metabolite relations and hepatic zones of elimination, capillary recruitment, capillary heterogeneity, and intrahepatic shunting is discussed. Differences between the models in hepatic parameter estimation, extrapolation to different conditions, and interspecies scaling are discussed, and criteria for choosing one model over the others are presented. In this case, the distributed model provides the most general framework for describing physiological processes taking place in the liver, and has so far not been experimentally refuted, as have the other two models. These simpler models may, however, provide useful bounds on parameter estimates and on extrapolations and risk assessments.     

经理收入的ISM分析(英文)

以经理的收入与经理的经营业绩相一致为假设,确定和分析了影响企业经理收入的个人、企业和外部环境因素。依据这些因素间存在的逻辑关系,运用解析结构模型(ISM)方法进行了定量处理,建立了影响经理收入因素的多级递阶结构模型。通过模型,得出企业因素对经理收入起着决定性作用,为建立有效的经理激励机制提供了理论和实际依据。     

房地产租赁市场中的对偶问题

尽管目前有一些确定房地产租赁价格的模型 ,但在实践中受各种实际条件的限制而不能发挥很大的作用。在此 ,笔者试图利用运筹学中的对偶问题来寻求一种新的房地产租赁价格确定模型 ,以利于房地产的实际操作     

TOT项目融资模式的价格决策模型

系统分析了利用TOT模式进行转移定价的影响因素,从双方经济效益最大化的角度出发,建立了不同目标下的转移定价决策模型,确定了实现双赢的价格水平,为TOT项目转移价格的确定和决策提供了理论依据。     

决策理论中的理性主义与渐进主义及其适用性

理性主义和渐进主义都是决策理论中的主要的根源性模式。对这两种模式的可行性和应用性的批评、争议和讨论 ,引发了多种决策模式的出现 ,同时也使前者得到不断改进 ,促进了决策理论的发展。考察这两种模式的主要特点和它们的相互关系 ,探讨它们在实践中的适用性 ,考量其利弊 ,有助于我们进一步加深对这两种决策模式的认识 ,并使之能在适当的应用中发挥积极的作用 ,从而改善我们的决策方式和决策质量     

试论高校创新人才培养

知识经济时代的制胜法宝是人才 ,具有创新意识和创造能力的人才 ,而培养创新人才的关键是在于教育。从理论和实践上对高校创新人才培养模式的构建进行了一些探讨 ,强调了教育改革在构建创新人才培养模式中的主导作用和提高教师素质的重要性     

供应链企业间的合作轨道模型

文章主要介绍了轨道模型在供应链企业合作中的应用 ,根据合作程度的不同 ,伙伴企业处于以核心企业为中心的不同轨道。文章分别从静态和动态的角度运用轨道模型分析了企业间合作关系以及这种合作关系的变化。一方面使企业间的合作问题简单化 ;另一方面 ,轨道模型便于对合作问题进行深入的定量化研究。