电子商务环境下零售商分销渠道的选择

针对电子商务环境下的产品分销渠道,研究了由一个制造商和一个零售商组成的供应链中零售商分销渠道的选择问题。运用主从博弈和Hotelling模型,分别建立了单一线下渠道模型和在同价策略下的双渠道模型,通过对模型的分析,给出了零售商选择不同分销渠道的条件。研究表明:制造商会积极促使零售商选择线上线下双渠道;构建线上渠道的运营成本会影响零售商的渠道选择。研究结果对零售商的渠道选择有一定的指导意义。     

变压器绕组温升试验及其不确定度分析

本文介绍了变压器正常加载时的温升试验过程和相关事项,并对试验数据进行变压器温升的不确定度分析。     

众筹中创新项目质量和报酬率的激励效应研究

众筹是整合社会分散财力资源从而实现筹资投资双方获得便利目的的一种有效的新型融资投资模式,属于互联网金融的一种形式.本文针对众筹过程中两大参与主体筹资方和投资方各自特征,依据成本收益理论,建立激励效用模型,考虑创新项目质量和报酬率两大因素的变化对众筹双方的期望效用的影响作用.研究结果表明:在三种不同的假设条件下,项目质量和报酬率两大因素影响众筹双方期望效用,进而可以激励双方主体,并且提出了众筹双方效用最优化状态的存在性.     

唐山大地震后重建的历史启示

唐山重建,惊天动地.岁月匆匆流过,而今蓦然回首,依稀感到了那场对于地球的巨大震撼. 1.公元1976年7月28日,是我们永远也无法忘记的黑色日子.唐山大地震发生10年之后,重建的新唐山顽强崛起.对此,在唐山抗震纪念碑碑文中,有这样几句充满激情的表述:"此间一砖一瓦一草一木,都宣示着如斯真理:中国共产党英明伟大,社会主义制度无比优越,人民解放军忠贞可靠,自主命运之人民不可折服."     

Updating Input–Output Tables with Benchmark Table Series

Numerous methods have been proposed to update input–output (I–O) tables. They rely on the assumption that the economic structure will not change significantly during the interpolation period. However, this assumption may not always hold, particularly for countries experiencing rapid development. This study attempts to combine forecasting with a matrix transformation technique (MTT) to provide a new perspective on updating I–O tables. Under the assumption that changes in the trend of an economic structure are statistically significant, the method extrapolates I–O tables by combining time series models with an MTT and proceeds with only the total value added during the target years. A simulation study and empirical analysis are conducted to compare the forecasting performance of the MTT to the Generalized RAS (GRAS) and Kuroda methods. The results show that the comprehensive performance of the MTT is better than the performance of the GRAS and Kuroda methods, as measured by the Standardized Total Percentage Error, Theil's U and Mean Absolute Percentage Error indices.     

随机存货决策中的安全库存研究

在有短缺成本下 ,讨论了再定购点的确定 ,着重分析了安全库存的一种简易计算。     

Designs for estimating an extremal point of quadratic regression models in a hyperball

This paper is devoted to studying optimal designs for estimating an extremal point of a multivariate quadratic regression model in the unit hyperball. The problem of estimating an extremal point is reduced to that of estimating certain parameters of a corresponding nonlinear (in parameters) regression model. For this reduced problem truncated locally D-optimal designs are found in an explicit form. The result is a generalization of the results of Fedorov and Müller (1997) for onedimensional quadratic regression function in the unit segment. Received February 2002     

Understanding sustainable development flexibility: An information perspective

Although flexibility has been considered critical in responding to uncertainty in a business environment, few studies have explored firms' flexibility in sustainable development. To understand the nature of firms that can respond better to uncertainty in their sustainable development practices, this study defines sustainable development flexibility and investigates the mechanism underlying its formation. The study proposes a conceptual framework on the interactions of managers' environmental attitude and cognitive style, as well as firms' information integration on sustainable development flexibility. A questionnaire survey was developed to test the corresponding hypotheses, and 241 valid responses were received from middle- and top-level managers in Chinese firms. The results show that (a) the higher the manager's environmental attitude, the higher the firm's information integration and greater sustainable supply chain flexibility, and (b) the more intuitive the manager's cognitive style, the greater the impact of environmental attitude on sustainable development flexibility.     

我的平衡的完整人生计划——读《管理:思想、科学与艺术》课程有感

什么是一个企业的最根本的问题?应该是管理者(领导者)的思维模式的问题.作为企业的领头羊,企业的管理者(领导者)的心身的全面健康发展对于企业的成败至关重要.我们的人生必须平衡,这样我们的自身及企业才能有可持续的发展.而为自己制定一份平衡的人生计划是多么重要!在本文中分为两个部分,前部分我将通过对人生生命轮的六个领域的描述来制定一份平衡的完整的人生计划,六个领域都是同样重要的,都要兼顾;第二部分我简要地展示我的一周,来较为感性地实施我的这个计划.     

前瞻性人格、职业适应力与员工职业成长:工作自主性的调节作用

研究基于职业建构理论和情景交互理论,探讨职业适应力作为中介变量,工作自主性作为调节变量在前瞻性人格影响个体职业成长(内在职业成长与外在职业成长)过程中的作用.通过对问卷数据的分层回归分析,研究结果表明:前瞻性人格对个体的内外在职业成长有显著正向影响;职业适应力在前瞻性人格与内在职业成长间表现出部分中介作用;工作自主性在前瞻性人格与外在职业成长关系间的调节作用更为显著.