基于电子渠道需求预测的渠道模式选择

本文基于Jerath等人的需求预测模型,探讨了电子渠道信息收集能力如何影响渠道成员收益及渠道总收益,并进一步分析了其对渠道模式、信息分享策略的影响。通过对模型的求解,得到了渠道成员的均衡策略及其影响因素。研究结果表明:经销商总是选择不分享私有信息,而厂商的渠道模式选择受电子渠道需求预测精度、市场波动、电子渠道潜在消费者比例等因素的影响。渠道的均衡策略有可能是既无电子渠道也无信息分享,也有可能是有电子渠道无信息分享。同时,当相关参数范围满足某些条件时,可通过协调机制使得建立电子渠道、分享信息成为新的均衡策略,并且这一策略满足帕累托优化。     

供应商与制造商信息共享及对收益影响研究

从供应链中的制造商与供应商的信息共享角度出发,在多供应商、单制造商模式下,提出了定价激励模型,并就其适用范围进行了阐述。通过该模型对信息共享与信息不共享下两类供应商的供货量、成本与利润分析表明,信息不共享模式下的供应商在供应量与利润方面会逐渐减少,成本会逐渐增加。因此,供应商与制造商信息共享,对于双方收益的提高都有好处,有利于实现＂双赢＂的目的。     

供应链背景下的共享信息价值评价

信息共享是供应链各节点企业相互信任和合作的前提条件,是实施供应链管理的关键所在。供应链共享信息的种类众多,共享信息价值的科学评价是其有效利用的基础和是否信息共享决策的依据。文章针对SCM信息共享的价值评价进行讨论,应用模糊综合评估法建立评估模型,最后应用该模型进行算例分析。     

需求扰动下闭环供应链的收益费用共享契约研究

本文研究了由一个制造商和一个零售商组成的零售商负责回收闭环供应链。指出通过收益费用共享契约可协调解决分散式决策闭环供应链中存在的“双边际效应”问题,提高其运营效益。当突发事件引起市场需求中的最大市场需求规模发生扰动时,通过对集中式决策闭环供应链的最优决策与稳定环境下起协调作用的收益费用共享契约协调零售商所得到的最优决策进行比较分析,结果表明：稳定环境下的收益费用共享契约将不能协调突发事件干扰下的分散式决策闭环供应链。基于收益费用共享契约的协调机理对其参数进行改进可再次协调突发事件干扰下的分散式决策闭环供应链,并且该契约也能够协调稳定环境下的分散式决策闭环供应链。最后,通过算例验证了本文的主要结论并说明了收益费用共享契约的价值。     

Vertical cost information sharing in a supply chain with value-adding retailers

We consider a supply chain consisting of one supplier and two value-adding heterogeneous retailers. Each retailer has full knowledge about his own value-added cost structure that is unknown to the supplier and the other retailer. Assuming there is no horizontal information sharing between two retailers, we model the supply chain with a three-stage game-theoretic framework. In the first stage each retailer decides if he is willing to vertically disclose his private cost information to the supplier. In the second stage, given the information he has about the retailers, the supplier announces the wholesale price to the retailers. In response to the wholesale price, in the third stage, the retailers optimize their own retail prices and the values added to the product, respectively. Under certain conditions, we prove the existence of equilibrium prices and added values. Furthermore, we obtain the condition under which both retailers are unwilling to vertically share their private information with the supplier, as well as the conditions under which both retailers have incentives to reveal their cost information to the supplier, thus leading to a win–win situation for the whole supply chain.     

敏捷供应链中基于跨单位知识共享的技术创新价值研究

本文建立了敏捷供应链中基于跨单位知识共享的技术创新价值模型,并对模型进行分析,分析结果表明:敏捷供应链节点企业应该在适当的新知识积累量时进行基于跨单位知识共享的技术创新,以获得技术创新的最大价值。     

Reduced costs propagation in an efficient implicit enumeration for the 01 multidimensional knapsack problem

In a previous work we proposed a variable fixing heuristics for the 0-1 Multidimensional knapsack problem (01MDK). This approach uses fractional optima calculated in hyperplanes which contain the binary optimum. This algorithm obtained best lower bounds on the OR-Library benchmarks. Although it is very attractive in terms of results, this method does not prove the optimality of the solutions found and may fix variables to a non-optimal value. In this paper, we propose an implicit enumeration based on a reduced costs analysis which tends to fix non-basic variables to their exact values. The combination of two specific constraint propagations based on reduced costs and an efficient enumeration framework enable us to fix variables on the one hand and to prune significantly the search tree on the other hand. Experimentally, our work provides two main contributions: (1) we obtain several new optimal solutions on hard instances of the OR-Library and (2) we reduce the bounds of the number of items at the optimum on several harder instances.     

Value of Sharing Production Yield Information in a Serial Supply Chain

New developments in corporate information technology such as enterprise resource planning systems have significantly increased the flow of information among members of supply chains. However, the benefits of sharing information can vary depending on the supply chain structure and its operational characteristics. Most of the existing research has studied the impact of sharing downstream information (e.g., a manufacturer sharing information with its suppliers). We evaluate the benefits of sharing upstream yield information (e.g., a supplier sharing information with the manufacturer) in a two‐stage serial supply chain in which the supplier has multiple internal processes and is faced with uncertain output due to yield losses. We are interested in determining when the sharing of the supplier's information is most beneficial to the manufacturer. After proposing an order‐up‐to type heuristic policy, we perform a detailed computational study and observe that this information is most beneficial when the supplier's yield variance is high and when end‐customer demand variance is low. We also find that the manufacturer's backorder‐to‐holding cost ratio has little, if any, impact on the usefulness of information.     

信息共享对供应链合作广告影响的博弈分析

本文研究需求不确定环境下合作广告供应链中的信息共享对供应链上下游企业决策及绩效的影响。在此供应链中,上游制造商决定产品批发价格及地方性广告费用分担比例,下游零售商决定地方性广告费用的投入及产品售价。运用斯坦伯格博弈模型研究了不确定性对上下游定价和广告投入决策的影响,分析比较了有信息共享和无信息共享两种情况下供应链各成员及供应链利润。结果表明,对零售商而言,其广告水平,产品售价,及期望利润都随着广告效应的增大而增加;对制造商而言,当广告费用分担率较大时,较强的广告效应会导致零售商对广告的过度投入,从而损害制造商的利润。给定制造商广告分担率,信息共享可以提高制造商期望利润,却减少了零售商期望利润,并可能减少供应链的总体利润。给定批发价格的情况下,信息共享会提高制造商及供应链期望利润,而对零售商来讲无差别。     

大数据推动政府治理创新的目标与路径

大数据的广泛应用对社会产生了深远影响,也对政府治理变革起着重要推动作用,大数据将推动政府治理理念、治理体系、治理方式的创新。政府治理的目标就是应用大数据实现法治政府、创新政府、廉洁政府和服务型政府。在运用大数据推动政府治理创新的过程中,应通过数据共享优化政府治理结构,通过政务形态信息化调整政府治理关系,通过政务平台技术化重塑政府流程,借用大数据来提升政府创新能力,通过数据应用法制化提升政府法治水平。所以,政府必须要主动适应信息公开和数据共享的大趋势,以此推动政府治理的变革与创新,进一步提高政府治理能力。