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一、算法设计 (一)问题描述 本文所讨论的供应商选择模型是一个多目标、多阶段的研究模型.核心企业生产的产品A,由若干个加工工序构成,各个工序之间有相互的约束关系.其中有的工序需要由核心企业自己生产,有的工序外包给供应商进行生产,供应商的可选择数量大于1. 相似文献
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本文针对打叶复烤企业采购活动中供应商资质规定不够明确这一问题,从国家法律法规及行业要求角度入手,结合打叶复烤企业具体采购业务,对供应商的资质进行分析,为提高打叶复烤企业采购质量,保障采购活动的合规合法做了一次有意义的探讨. 相似文献
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知识经济时代,决定企业竞争力的关键是新产品的快速开发能力,而提高快速产品创新能力离不开供应商的参与.针对支持快速产品创新的供应商评价的特殊性,建立了相应的评价指标体系,在二元对比的基础上运用模糊优选模型对供应商进行评价与择优,应用实例表明了它的科学性与可行性,对推动与促进企业产品创新活动具有重要的现实意义. 相似文献
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石化企业物资采购中供应商管理策略 总被引:1,自引:0,他引:1
石化行业全球化程度高,有大量的供应商.许多企业与供应商缺乏合作的战略伙伴关系,往往从短期效益出发,挑起供应商之间的价格竞争,失去了供应商的信任与合作基础.石化企业生产流程长且复杂,采购环节很长,需求信息偏差逐级放大引起库存不确定,导致效率低下.本文就石化企业物资采购中供应商管理策略做了相关探索.物资采购管理中,供应商的选择是重中之重,供应商的业绩对企业物资供应的影响越来越大,在产品质量、提前期、库存水平、产品设计等方面都影响着企业物资供应管理的绩效. 相似文献
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缓解生态保护与经济发展之间的矛盾已成为广州市目前亟须解决的重要现实问题。通过对经济效益和生态效益最大化的不同侧重,基于多目标规划模型与CLUE-S模型对广州市2025年不同情景下的土地利用进行优化配置。结果表明:(1)与现状相比,兼顾两者效益情景的土地利用优化方案最为合理:效益提升最为协调分别为9.35%、9.58%,不同景观类型破碎化程度适中;(2)广州市对生态、经济效益的不同侧重主要导致林地、建设用地和水域面积的变化较大,未来规划应注重这三种地类的合理规划;(3)多目标规划与CLUE-S模型的结合,可以有效解决广州市多情景的土地资源优化配置模拟。研究结果对广州市土地利用可持续发展和生态文明建设具有较大的参考价值。 相似文献
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有关企业创新的影响因素一直是理论界与实务界探讨的热点话题。利用167家中国制造企业调查数据,实证考察了企业不同创新模式下供应商选择效应与协作效应,揭示了外部关键供应商对企业创新的影响及其实现机制。研究发现:供应商选择标准对企业突破式创新的影响同时存在选择效应与协作效应,即供应商选择标准既可以直接影响企业突破式创新,又会通过影响供应商协作程度间接作用于突破式创新;供应商选择标准不会直接影响企业渐进式创新,而是通过供应商协作这一中介机制影响企业渐进式创新;与供应商关系型搜寻策略相比,市场型搜寻策略能够加强供应商选择效应,但这主要体现在对企业突破式创新的影响上。 相似文献
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多源供应商的选择和最优采购的一种方法 总被引:1,自引:0,他引:1
臧运华 《技术经济与管理研究》2009,(2):12-13
本文研究需求量大,单一供应商无法满足供货需求情况下的多元供应商选择问题。用层次分析法与线性规划法结合,通过实例给出供应商的选择及最优采购的一种方法。 相似文献
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The rapid pace of technological innovation in the semiconductor manufacturing industry has necessitated the acquisition of competitive advantage from strategic technology planning. The vital requisite for this is well-timed investment including the replacement of old equipment with advanced new equipment. In such investment, selecting the appropriate semiconductor manufacturing equipment from the appropriate supplier is a key factor for successful technology planning. Therefore, equipment supplier selection should be taken into account in the technology planning of semiconductor manufacturing companies. One of the most widely used tools for technology planning is the technology roadmap (TRM). However, conventional TRMs have not considered the task of supplier selection. To address this limitation, this study proposes an extended, four-layered TRM that adds the layer of equipment supplier to the conventional layers of market, product, and technology. The equipment suppliers to be included in the new layer are selected from the supplier portfolio matrix composed of two performance axes: supplier performance and equipment performance. The candidates of equipment suppliers are placed on the supplier portfolio matrix according to the values of two axes determined by evaluation using the analytic hierarchy process (AHP). The proposed TRM is expected to be useful for technology planning by adding a consideration for equipment supplier selection in semiconductor manufacturing companies. 相似文献
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考虑政府补贴下由一个供应商和一个制造商构成的绿色供应链.供应商通过对原材料和产品生产过程的控制来提供绿色产品,也因此能够获得政府补贴.政府依据供应链的最终产品数量向供应商提供补贴,供应商选择制造商以完成最终产品的生产过程,并除采购价格以外按一定比例与制造商分享政府补贴,制造商有生产成本等私人信息.在分析供应商和制造商成本、收益的基础上,建立了一个逆向选择模型,其中供应商提供包括供应数量和补贴分享比例的合约菜单,制造商从中选择一个合约或者拒绝全部合约,依据成本制造商可分为两种类型:较高机会成本和较低机会成本,通过优化合约设计,供应商对不同类型制造商提供不同的供应数量和补贴比例,以实现供应商收益最大化. 相似文献
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本文简要总结了供应商评判研究的历史及现状,从协调供应链理论的角度出发,提出协调供应链下选择结盟型供应商的三阶段过程模型,并建立了选择结盟阶段结盟型供应商评价指标体系。借助层次分析法建立了结盟型供应商的模糊层次评判模型,通过实际算例表明,该评判模型为协调供应链中结盟型供应商选择提供了有效的解决途径。 相似文献
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The objective of this paper is to develop a multi-echelon supply chain model for multiple-markets with different selling seasons. Here, two suppliers are involved to supply the raw materials to the manufacturer where the main supplier may face supply disruption after a random time and the secondary supplier is perfectly reliable but more expensive than the main supplier. In this article, the manufacturer produces a random proportion of defective items which are reworked after regular production and are sold in a lot to another market just after completion of rework. The retailer sells the finished products in different markets according to seasons. Finally, an integrated expected cost per unit product of the chain is minimized analytically by considering the lot-size ordered as a decision variable. An appropriate numerical example is also provided to justify the proposed model. 相似文献
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This article provides empirical evidence on the effects of Chinese resource demand on the resource-rich natural resource supplier using the example of Australia. A structural VAR model is used to examine the effects of Chinese resource demand, commodity prices and foreign output on the macroeconomy with a formally specified mining and resource export sector. The key findings of the article are that shocks to Chinese demand and commodity prices result in a sustained increase in commodity prices and mining investment and a positive impact on the resource sector. However, these shocks eventually lead to lower real domestic output with factors of production moving out of the nonresource sectors and into the resource sector, resulting in a fall in nonresource sector output which is not fully offset by the rise in resource sector output. The results also indicate some market power by the natural resource supplier. 相似文献
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Suppliers often offer trade credits to their capital-constrained retailers to stimulate more sales. The permissible delay period, as a variable factor, influences almost all decisions in a trade credit contract. In this article, we consider a two-echelon supply chain involving a supplier and a capital-constrained retailer in which the demand is the retail price- and time-dependent. We propose a decision model to determine the optimal delay period and pricing decisions under a noncooperative Stackelberg game with the supplier as the leader. We obtain the analytical-form optimal solutions. Our analysis reveals the influence of the delay period on the wholesale and retail prices. Numerical examples further clarify our theoretical results. 相似文献