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在制造商进行流程创新和产品创新的供应链中,当需求预测信息不对称时,研究了零售商的需求信息分享策略以及制造商最优创新模式。利用精炼贝叶斯理论和Stackelberg博弈模型,首先求得了每一种创新模式下信息分享价值、促进需求信息分享的激励机制以及供应链均衡的信息分享策略,其次对两种创新模式下利润进行对比分析。研究发现,在两种创新供应链模型中,当创新效率较高和较低时,零售商自愿分享和不分享需求信息分别是均衡策略;当创新效率处于中间水平时,通过设计一个讨价还价机制可以使零售商分享需求信息成为一个均衡。此外,当消费者对质量(价格)更敏感时,制造商选择产品创新(流程创新)模式可以使供应链成员都获益。 相似文献
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研究制造商与渠道势力不对称零售商的合作广告问题.在需求不确定的情况下,建立了制造商和零售商的分散式与集中式系统下的合作广告模型,得到了不同系统下制造商和强势零售商的最优合作广告策略、强势零售商和边缘零售商的最优订货策略,及他们的最优期望利润.通过对不同系统下均衡结果的比较分析,证明了分散式系统存在不协调.设计了实现渠道协调的联合契约,指出分散式协调系统下的联合契约不唯一,契约参数两两正相关,广告补贴率、产品批发价格和回购价格是制造商和强势零售商力量平衡的焦点. 相似文献
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针对信息泄露导致零售商信息共享意愿降低的问题,基于竞争型制造商创新的视角,构建了考虑信息泄露的零售商需求预测信息共享模型,求解了供应链各主体的均衡决策,分析了信息泄露对零售商信息共享的影响。研究发现:虽然需求预测信息泄露能够增加两个竞争型制造商的创新投入,但会削弱博弈主导制造商的领导者优势。上游竞争型供应链中的信息泄露会削弱下游零售商的事前利润,零售商的信息共享价值降低。本文克服了Shamir关于供应链需求信息泄露局限于零售商的不足,并进一步考虑了制造商之间的竞争和创新。 相似文献
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制造商为了激励零售商订购更多数量的产品,会在产品零售价下调时提供给零售商一定的补偿,如何制定最优补偿机制是提高供应链收益的关键问题。为此,建立了两阶段销售差价补偿机制下制造商与零售商的博弈模型,分析了纳什均衡解和Stackelberg均衡解下制造商对零售商的差价补偿机制的决策行为,导出了在最优让步均衡策略下差价补偿机制定量关系,并提出了求解给定差价补偿系数下的近似最优让步均衡策略的算法。通过智能产品算例的分析,表明差价补偿机制能提高供应链的期望收益,增加零售商的订购量,进一步,说明差价补偿机制可以有效地改善零供关系。 相似文献
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《数学的实践与认识》2020,(3)
针对具有不同质量投入和服务投入的双渠道供应链,主要研究其成员最优均衡决策问题.构建了包含两个制造商和一个零售商的两级双渠道供应链决策模型;采用微分博弈确定在制造商竞争和合作两种模型下各成员的最优均衡决策及其利润,并着重探讨质量投入系数、服务竞争系数和传统渠道市场占有率这三个关键参数对它们的影响;用算例对该模型进行仿真分析研究结果表明:在竞争模型下零售商的利润随着传统渠道市场占有率、质量投入竞争和服务竞争的增大而增大,但合作模型下的利润与服务竞争无关;制造商合作时制造商的利润之和提高,且两个制造商在两个渠道边际利润和之比在一定范围内,两个制造商会有合作意愿,但零售商的利润下降.研究能够为各成员企业的最优均衡决策提供支持和参考. 相似文献
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We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes. This allows us to compute the pointwise and local Hölder regularity of sample paths and to analyse their behaviour at infinity. We also provide some results on the Hausdorff dimension of the range and graphs of multidimensional anisotropic self-similar processes with stationary increments defined by multiple Wiener–Itô integrals. 相似文献
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It is considered the class of Riemann surfaces with dimT1 = 0, where T1 is a subclass of exact harmonic forms which is one of the factors in the orthogonal decomposition of the spaceΩH of harmonic forms of the surface, namely The surfaces in the class OHD and the class of planar surfaces satisfy dimT1 = 0. A.Pfluger posed the question whether there might exist other surfaces outside those two classes. Here it is shown that in the case of finite genus g, we should look for a surface S with dimT1 = 0 among the surfaces of the form Sg\K , where Sg is a closed surface of genus g and K a compact set of positive harmonic measure with perfect components and very irregular boundary. 相似文献
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Kunyang Wang Feng Dai 《分析论及其应用》2007,23(1):50-63
As early as in 1990, Professor Sun Yongsheng, suggested his students at Beijing Normal University to consider research problems on the unit sphere. Under his guidance and encouragement his students started the research on spherical harmonic analysis and approximation. In this paper, we incompletely introduce the main achievements in this area obtained by our group and relative researchers during recent 5 years (2001-2005). The main topics are: convergence of Cesaro summability, a.e. and strong summability of Fourier-Laplace series; smoothness and K-functionals; Kolmogorov and linear widths. 相似文献
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ZHENG ShiJun 《分析论及其应用》2004,20(3)
Schr(o)dinger operator is a central subject in the mathematical study of quantum mechanics.Consider the Schrodinger operator H = -△ V on R, where △ = d2/dx2 and the potential function V is real valued. In Fourier analysis, it is well-known that a square integrable function admits an expansion with exponentials as eigenfunctions of -△. A natural conjecture is that an L2 function admits a similar expansion in terms of "eigenfunctions" of H, a perturbation of the Laplacian (see [7], Ch. Ⅺ and the notes), under certain condition on V. 相似文献
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One of the most fundamental problems in theoretical biology is to explain the mechanisms by which patterns and forms are created in the'living world. In his seminal paper "The Chemical Basis of Morphogenesis", Turing showed that a system of coupled reaction-diffusion equations can be used to describe patterns and forms in biological systems. However, the first experimental evidence to the Turing patterns was observed by De Kepper and her associates(1990) on the CIMA reaction in an open unstirred reactor, almost 40 years after Turing's prediction. Lengyel and Epstein characterized this famous experiment using a system of reaction-diffusion equations. The Lengyel-Epstein model is in the form as follows 相似文献
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《数学研究及应用》2014,(6)
<正>Aims and Scope Journal of Mathematical Research with Applications(JMRA),formerly Journal of Mathematical Research and Exposition(JMRE)created in 1981,is one of the transactions of China Society for Industrial and Applied Mathematics,and is a bimonthly journal.JMRA is dedicated to publishing first-rate original research papers in all areas of mathematics with applications,and making research findings available to a wide scientific world,as JMRE has for many years.In line with the name change,the new scope of Journal of Mathematical Research with Applications will not include the articles on mathematical methodology and mathematical philosophy.Copyright Information 相似文献
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