政府补贴下的三级低碳供应链减排博弈研究

本文分别构建了政府补贴下,供应链上企业单独减排、供应商对制造商碳减排成本进行分担、供应商和零售商均对制造商碳减排成本进行分担3种减排模型,求解得到不同减排模式下,包括成本分担率和单位减排量在内的供应链最优决策。研究发现,政府补贴率的提升反而使成本分担率降低。通过博弈分析及算例验证得出：在供应链上三方企业联合减排下,即供应商和零售商都对制造商的碳减排研发提供资金支持时,单位产品的减排量及各企业利润达到最大,仅供应商对制造商碳减排成本分担时次之, 供应链上企业单独减排时最小, 但仅供应商一方对制造商的碳减排成本进行分担时的成本分担率,比其与零售商同时分担时的要大。这些结论为政府确立合适的补贴方案及供应链上企业减排策略的制定提供了理论依据。     

Strategic marketing in global supply chains: Four challenges

Supply chain management has emerged as a critical arena in which firms can find significant cost reduction opportunities, giving them a cost advantage over competitors. When supply chain management orientations are adopted by several firms in a supply chain, together they can significantly reduce supply chain costs pitting supply chain against supply chain. However, the pursuit of cost savings opportunities is not the only objective of supply chain management. Superior supply chain management can facilitate marketing strategy and lead to the creation of superior customer value, satisfaction, and loyalty, which in turn lead to improved product profit margins, overall firm profitability, and overall corporate growth. However, marketing strategy is problematic in global supply chains. Specifically, four significant strategic marketing challenges exist that relate to the development and execution of marketing strategy in global supply chains. This article draws attention to these challenges to stimulate managerial and research efforts that will move marketing strategy through the 21st century.     

Time-driven activity-based costing for health care provider supply chains

ABSTRACT

Health care providers currently operate in an environment of complex supply chains and increasing costs where approximately one third of hospital operating expenses are related to supplies. It is pertinent that health care providers have a clear understanding of their supply chain process costs. Knowing how these costs are driven and where opportunities for cost reduction exist can support health care provider supply chain (HPSC) efficiency. In this article, we present a time-driven activity-based costing (TDABC) supply chain cost methodology for health care providers. A TDABC management system can provide health care providers with valuable product and process supply chain cost information by investigating logistics activities, resource consumption, and time drivers. Our HPSC TDABC methodology is demonstrated in a case study conducted for the supply chain department of a 200-bed, not-for-profit hospital.     

Applying activity-based costing in a supply chain environment

Traditional intra-firm cost accounting tools are not appropriate in the context of supply chain management, as there are no standards for the definition and composition of costs. This prohibits exchange and comparison of cost data among different supply chain members. Against this background, several activity-based costing models for inter-firm cost accounting have been proposed. Evaluating these models, a conceptual framework for activity-based costing in a supply chain has been developed. This also forms the basis for a single case study conducted at Europe's largest company for façade components. This demonstrates how significant inter-firm cost saving opportunities can be identified and offers a first step in assessing the suitability of the proposed model.     

回收质量不确定下的竞争性闭环供应链政策机制研究

本文主要探讨了回收质量不确定下的竞争性闭环供应链的政府政策机制,建立了4种情形下的竞争性闭环供应链分散式决策模型,研究了3种政策机制对闭环供应链回收率、总碳排放量和制造商利润的影响,模型由两个制造商和一个第三方回收商构成。结果表明：回收率和制造商利润受到回收质量的影响,存在最佳回收质量系数使回收率最高以及制造商总利润最高,最佳回收质量系数受到碳税的影响;补贴与碳税相结合机制更能有效的引导回收、降低总碳排放量以及激励一般制造商进行再制造。最后,通过算例分析进行了验证。     

Evaluation of postponement in the soluble coffee supply chain: A case study

This paper, through a case study, evaluates postponement as an option to improve supply chain performances in a soluble coffee manufacturer. The main focus of the paper is on the development of a numerical data-driven methodology for quantifying the benefits of postponement obtained from the total inventory reduction. Our study shows that significant cost savings are achievable by delaying the labelling and packaging processes until actual orders from retailers are known. These savings include the reduction of the cycle stock, safety stock, and obsolete stock unsold from promotional events. We also discuss the cost implications of the proposed configuration that may offset the estimated potential benefits. The methodology presented in this paper can also be used in many other supply chains, particularly in the food industry with similar environments. This paper contributes to the literature in extending the very short list of published work presenting a systematic methodology of characterising the postponement benefits in real world settings and driven by numerical data.     

Coordination of a supply chain with one manufacturer and multiple competing retailers under simultaneous demand and cost disruptions

This paper develops a coordination mechanism for a supply chain consisting of one manufacturer and n Cournot competing retailers when the production cost and demands are simultaneously disrupted. This differs from traditional supply chain coordination models under a static case and the case with only demand or cost disruption. The coordination mechanism with revenue sharing is considered, and the effects of production cost and demand disruptions on revenue sharing contract are discussed to investigate the optimal strategies of players with disruptions. The penalty cost is introduced explicitly to obtain the production deviation cost caused by the disruptions. In this study, it is obtained that the coordination contract considering the production deviation cost differs from that without disruption. Besides that, the disruptions may affect the order quantities, wholesale prices as well as revenue sharing contract. Then, the optimal strategies for different disruption levels under the centralized decision-making mode are proposed. Concerning the decentralized mode, the improved revenue sharing contract can be used to coordinate the decentralized decision-making supply chain effectively. Finally, the theoretical results are illustrated by conducting some numerical examples.     

Predatory intent under uncertainty

Current analyses of predatory behavior neglect uncertainty. Its presence complicates a firm's evaluation of profits and risks associated with various pricing strategies. Using a price leadership model (with the supply of the competitive fringe not known in advance), we show that a risk averse dominant firm will price lower than the price which maximizes expected profits. Such behavior could be misconstrued as being predatory if marginal and average variable cost rules are used for establishing the proof of predation.     

面向供应链的环境治理组织模式研究——基于交易费用视角的考察

环境治理的组织形式既可以是单个企业的末端治理，也可以是具有纵向关系的企业间合作治理。后一种环境治理组织方式在激励机制、节约信息成本和治理成本等方面具有的优势．已经越来越成为政府环境治理和企业提高竞争力的重要途径。本文试图借助交易费用理论．从供应链的视角考察具有纵向关系的企业间合作环境治理的组织形式与结构，并进一步探讨供应链上环境治理的驱动者与驱动方式的选择问题。分析表明．面向供应链的环境政策是末端治理政策一个很好的补充与替代。但面向供应链的环境政策必须能够降低供应链上企业环境治理的交易成本．并依据纵向关系或供应链的组织特征而有所差异．才能提高企业问协调环境治理效率。     

VMCI 下基于批发价决策权转移的供应链效率改进研究

本文在VMCI 模式下,考虑销售努力水平对市场需求的影响,研究批发价决策权由供应商转移至零售商的两级供应链效率改进问题。假定零售商决策批发价和销售努力水平,供应商决策寄售量,建立了零售商主导的Stackelberg 博弈模型,证明了集中决策下的最优解和分散决策下的均衡解均存在且唯一,集中决策下的寄售因子大于分散决策下的对应值。随后,引入收入共享与销售努力成本共担契约,论证了系统中寄售因子保持不变、批发价降低,且当契约参数满足一定条件时,可实现帕累托改进,实现供应链的效率改进。最后,分析了契约参数对于系统决策变量及利润的影响。     

随机需求下横向并购供应链网络整合优化策略研究

本文从系统优化视角,针对增设集散中心的横向并购供应链网络整合策略,利用变分不等式建立了随机需求下的整合优化模型。以市场链为主线,以供应链网络均衡理论为基 础,构建了以横向并购供应链网络活动总成本最小为目标的数学模型,通过转换成变分不等式采用改进的欧拉算法进行模型求解。通过数值算例进一步说明了模型的适用性和灵活性,得出了增设集散中心的并购整合策略能够降低供应链网络的平均运营成本的结论,通过对比不同市场紧密程度下产生的供应链网络平均成本协同效应,发现随着市场紧密程度的增加其协同效应更明显,为横向并购供应链网络整合优化提供理论依据与方法。     

Pricing issues in industrial marketing

Developing an effective pricing strategy today is becoming a difficult task for industrial marketing managers. The failure of firms to totally understand the implications of their pricing decisions often leads to missed opportunities and eventually lowers profits. Price setting and implementation are multidimensional processes affecting customers, products, cost recovery efforts, produce margin levels, customer retention, market share, and domestic and international sales. This issue of Industrial Marketing Management provides some insights into the complexities of this process for managers by examining pricing on several levels, including the organizational influences on industrial pricing, the factors affecting international pricing, the importance of pricing in controlling supply chain costs, the influence of information on pricing decisions, the degree to which the Internet and reverse auctions are affecting customer relationships with their suppliers, and the importance of developing a strategic pricing plan.     

云制造环境下制造能力共享的动态策略分析

本文在物联网环境下,考虑制造商剩余制造能力共享的动态性及对需求产生的影响,借助微分博弈研究了单个云平台和制造商构成的两级供应链制造能力共享问题。分析了供应链中制造商占主导的Stackelberg博弈、纵向合作以及云平台提出成本分担契约的情形,构建了相应的动态模型,得到反馈均衡策略及利润;发现合作共享能提高供应链整体利润,一定条件下实施的成本分担契约能实现供应链的协调;最后,通过数值分析,验证了结论的有效性。     

A simple approach for assessing the cost of system nervousness

A well-known problem in coordinating supply chain inventories is that replenishment decisions are revised due to stochastic demands. This issue is often referred to as system nervousness. The literature distinguishes between two types of nervousness: setup-oriented and quantity-oriented. It is widely accepted that cost of nervousness is difficult to measure. We argue that this cost can be evaluated by means of three well-established inventory control strategies: static uncertainty, dynamic uncertainty, and static-dynamic uncertainty. These strategies reflect extreme cases with regard to the setup- and the quantity-oriented nervousness, and provide a simple yet an objective measure to assess the cost of system nervousness. Our results are of practical importance. We highlight that the setup-oriented nervousness, which is considered to be the most critical in practice, can be eliminated with a minor cost penalty. This is, however, not the case for the quantity-oriented nervousness.     

基于EVA的供应链融资模型与绩效衡量

供应链融资是近年来供应链管理研究领域一个较为新型的课题,是解决中小企业融资瓶颈的新型融资运作模式.结合供应链理论和财务指标的设置,文章拓展了供应链融资模型和关键绩效衡量维度,提出基于EVA视角下的供应链融资绩效衡量具有系统性、相对量的三个动态维度：业务融资周期率、资本融资率和成本盈利指数,使之更加适合国内供应链融资风险大、融资条件苛刻的经济环境.运用案例研究的方法,对成都某X石油贸易公司的案例进行分析,证实了上述提出的基于EVA视角的供应链融资三个维度的合理性,并得出研究的结论和启示.     

Impact of demand uncertainty on supply chain cooperation of single-period products

Cooperation is an approach of improving competitive advantages of a supply chain. A two-echelon supply chain consisting of a manufacturer and a retailer for a single-period product is studied, and retail-market demand uncertainty is described by coefficient of variation. We develop a cooperation mechanism to address the cooperation and its implementation between the manufacturer and the retailer, two market situations are considered: (i) the wholesale price and the order quantity are decision variables, (ii) the wholesale and the retail prices as well as the order quantity are decision variables. In both market situations, our research shows that: (1) the cooperation mechanism can improve the overall channel profits and the supply chain members’ allocated profits, (2) the described cooperation is conditional on retail-market demand uncertainty: it can be implemented if, and only if, the fluctuation of retail-market demand is relatively small and coefficient of variation of retail-market demand does not exceed an upper bound. Impacts of retail-market demand uncertainty on wholesale price, order quantity and/or retail price have also been investigated through analytical and numerical analyses. Although our research is based on the assumption that the manufacturer dominates the supply chain in the non-cooperative situation, which is not the case for most retailer-driven supply chains, this research is still significant on providing guidelines for practitioners in current China mid-level car market that is similar to situations described in the paper.     

Optimal lot sizing in a non-cooperative material manager-controller game

It is important for manufacturing companies to optimise purchase order quantities. Inaccurate lot size planning raises costs and lowers profits, which top management of course attempts to avoid through controlling processes. The lot size decision becomes even more relevant in the case of just-in-time delivery within a supply chain.The interaction between lot sizing and auditing can be described in terms of a modified inspection game. This paper considers how probabilities, which are the basis for the mixed strategies at equilibrium in the inspection game, will change if the level of penalties accruing to the two players (material manager and controller) depends on the cost deviation caused by the material manager's poor lot-size planning. It is evident that the Nash equilibrium shifts to the strategy combination (methodically determined decision and low auditing level), if the penalties imposed on the controller and material manager increase.Penalties that depend on such deviations, and an accurate audit of the controller's report by top management, prove to be the best instruments for avoiding mismanagement by the material manager and poor controller work, both of which lead to high costs.     

On supply chain coordination for false failure returns: A quantity discount contract approach

A large proportion of consumer returns fall into the category of false failure returns, which refer to returns without functional defects. In this paper, we consider profits resulting from exerting costly effort to reduce false failure returns in a reverse supply chain. The supply chain as a whole has a strong incentive to reduce such returns for cost saving. However, retailers typically enjoy a full credit provided by suppliers for returns, so they may not have sufficient incentives to exert enough effort for supply chain profit maximization. In some scenarios retailers may even have the motivation to encourage such returns. We suggest using a coordination contract to resolve this profit conflict. We introduce a quantity discount contract which specifies a payment to the retailer with an amount exponentially decreasing in the number of returns. We present explicit forms of such contracts given different assumptions about the distribution of the number of returns. We also prove that the contract is Pareto improving. Besides, it is shown that when the contract is applied in a closed-loop supply chain, it can deter retailer's potential incentive to encourage returns. Moreover, some modifications of the contract can lead to easy allocation of supply chain profit.     

Sustainable fashion supply chain management under oligopolistic competition and brand differentiation

In this paper, we developed a new model of oligopolistic competition for fashion supply chains in the case of differentiated products with the inclusion of environmental concerns. The model assumes that each fashion firm's product is distinct by brand and the firms compete until an equilibrium is achieved. Each fashion firm seeks to maximize its profits as well as to minimize its emissions throughout its supply chain with the latter criterion being weighted in an individual manner by each firm. The competitive supply chain model is network-based and variational inequality theory is utilized for the formulation of the governing Nash equilibrium as well as for the solution of the case study examples. The numerical examples illustrate both the generality of the modeling framework as well as how the model and computational scheme can be used in practice to explore the effects of changes in the demand functions; in the total cost and total emission functions, as well as in the weights.     

Opening the black box of food waste reduction

Surplus food management plays a key role in food waste reduction. This paper addresses the multifaceted concept of food supply chain sustainability by presenting a model of surplus food generation and management (called ASRW, Availability-Surplus-Recoverability-Waste), which encompasses the integrated food supply chain (i.e. business, environmental and social players). The model was developed using a bottom-up approach, by conducting 30 exploratory case studies and iterating theory development and data analysis. Three confirmatory case studies, from different food supply chain stages, are also presented to demonstrate how the model can be used to identify food waste reduction strategies.