Supply chain scheduling optimisation in mass customisation based on dynamic profit preference and application case study

Traditionally, the ‘postponement strategy’ is a better way to solve the contradiction between ‘scale production effect’ and ‘customised demand level’ in mass customisation (MC). In higher customisation situation, the conflict between the role of postponement and the higher level of customised demand must be outstanding. When MC operates in supply chain, the excellent flexible characters of the supply chain system will create better conditions to solve the conflict from a new perspective, but the operating combination of MC and the supply chain with uncertain characters will lead to various complicated contradictions and bottlenecks. In this article, we discuss the supply chain scheduling optimisation in MC based on dynamic profit preference to solve these contradictions and bottlenecks, establish a special optimisation model to implement the scheduling. We make a computational industrial case study to illustrate the method application and show the benefits of solving the key contradiction in MC by the supply chain scheduling.     

Coordinated responsiveness for volatile toy supply chains

Demands for innovative products in short selling windows are highly unpredictable. This volatility creates demands with dramatic peaks and troughs due to risk-avoidance behaviours among manufacturers and retailers. The consequences are high obsolete inventory, lost sales, and markdowns. Theoretically, the concepts of quick response and postponement are among the potential solutions for such as a volatile and seasonal toy supply chain. This study explores the role of responsiveness and coordination in improving supply chain performance. It is based on an in-depth case study in a European toy supply chain. Consumer and retailer demand patterns and their implications to the manufacturer's supply chains are analysed. Opportunities for relocating order penetration points (OPP) and quick response are simulated, and appropriate relocation rules are established. It is concluded that OPP relocation and responsiveness are beneficial but inadequate in improving the supply chain. Coordination of ordering behaviours is necessary. Coordination processes to achieve greater performance between the toy manufacturer and two of its retailers are presented. Furthermore, the concept of ‘coordinated responsiveness’ is proposed, which combines the concepts of quick response, accurate response and coordination.     

Mitigating the effect of risk conditions on supply disruptions: the role of manufacturing postponement enablers

While previous published studies have evaluated the drivers of supply disruptions, only a few have empirically investigated the role of manufacturing postponement enablers as mitigating practices. This work explores the complex interaction between supply disruptions (i.e. supplier failure, purchase unavailability), risk conditions (i.e. antecedents that positively influence the probability and severity of supply disruptions) and manufacturing postponement enablers (i.e. product and process modularity). Specifically, we aim at understanding ‘when’ manufacturing postponement enablers should be adopted the most and ‘if’ their adoption can fully mitigate the effect risk conditions exert on supply disruptions’ probability and severity. To achieve our objective, we developed a conceptual model, and we tested it using survey data from 54 Italian manufacturing companies. The results show that supply market difficulty and technological uncertainty imply a higher probability and severity of disruptions associated with supplier failure and purchase unavailability. Most importantly, we provide evidence of the role played by product and process modularity in fully mitigating the effect of technological uncertainty on supply disruptions.     

A Model for Measuring Supplier Risk: Do Operational Capability Indicators Enhance the Prediction Accuracy of Supplier Risk?

The purpose of this study was to develop a supplier risk assessment model for buyers to estimate supplier risk. It is one of the few empirical studies that considers both operational capability indicators and financial indicators; a standard logit model with five key variables (switching cost, operating profit margin, asset turnover ratio, quality capability and technological capability) was suggested as a practical tool. This model not only enhanced the accuracy of supplier risk assessment, but also served as a core element of a new supply chain management tool, ‘supplier management at risk’. More practically, the model enables purchasing firms to assess supplier risk and take proactive measures against the estimated risk.     

Creating a manufacturing environment that is in harmony with the market—the ‘how’ of supply chain management

The inherent instabilityof complex supplychains is well understood and documented; the potential benefits of taking time out of the chain in terms of reduced inventory and lower operating costs are clearly substantial. There is now a broad community of managers and practitioners who know ‘what’ in principle needs to be done. The issue for all is ‘how’ to go about it for their particular business. This paper builds on an organizational trade-off model through which logistics moderates the conflicting demands and culture of manufacturing on the one hand and marketing on the other. The paper introduces three practical techniques for securing the benefits of supply chain management: time-based simulation; cost-to-serve; and piloting change. Used together these methodologies can deliver breakthrough in supply chain effectiveness.     

Measuring the benefit of changing the value offering in grocery supply chains

New value-adding solutions are needed for grocery supply chains to gain a sustainable competitive advantage in a market environment characterised by increased competition. This paper discusses two case studies that identify how improvements to the value offering brought about enhancements to the performance of the total supply chain. The concept of ‘time benefit analysis’ is applied to measure the impact of the change. These approaches offer novel and unique techniques for performance measurement and value offering analysis in supply chain management.     

Analysis of postponement strategy by EPQ-based models with planned backorders

This paper develops economic production quantity (EPQ)-based models with planned backorders to evaluate the impact of the postponement strategy on a manufacturer in a supply chain. We derive the optimal total average costs per unit time for producing and keeping n end-products in a postponement system and a non-postponement system, respectively. By comparing the optimal total average costs of the two systems, we evaluate the impact of postponement on the manufacturer under four circumstances. Our results show that postponement strategy can give a lower total average cost under certain circumstances. We also find that the key factors in postponement decisions are the variance of the machine utilization rates and the variance of the backorder costs.     

考虑成员风险规避的双渠道绿色供应链定价与绿色投入决策研究

本研究聚焦供应链成员风险偏好对双渠道绿色供应链的影响，在构建以供应商为主导的双层供应链模型基础上，研究成员间风险规避系数对产品绿色度、线上以及线下销售价格的影响。研究表明供应商的风险规避行为显著影响供应链绿色水平，导致产品绿色度、线上价格、线下价格降低，但零售商的风险规避行为会导致产品绿色度、线上价格升高，同时线下价格受到消费者绿色偏好的影响，当消费者绿色偏好水平较低时，零售商风险规避行为导致线下价格降低，而当消费者绿色偏好水平较高时，零售商风险规避行为导致线下价格升高；在供应商风险中性，零售商风险规避时，产品的绿色度最高，在供应商风险规避，零售商风险中性者时，产品绿色度最低。     

Value of and Interaction between Production Postponement and Information Sharing Strategies for Supply Chain Firms

We analyze the value of and interaction between production postponement and information sharing, which are two distinct strategies to reduce manufacturers’ uncertainty about demand. In both single‐level and two‐level supply chains, from the manufacturer's perspective, while information sharing is always valuable, production postponement can sometimes be detrimental. Furthermore, the value of production postponement is not merely driven by savings in inventory holding cost as postponement enables the manufacturer to avoid both excess and shortfall in production. We find that production postponement and information sharing strategies may substitute, complement, or conflict with each other, depending on the extent of the increase in the unit production cost when production is postponed. In a two‐level supply chain, from the retailer's perspective, information sharing and production postponement can be beneficial or detrimental. When information sharing is beneficial to the retailer, the retailer always shares her demand information with the manufacturer voluntarily. In addition, this voluntary information sharing is truthful because inflated or deflated demand information hurts the retailer through a higher wholesale price or a stock‐out. However, the retailer never shares her demand information voluntarily if the manufacturer has already adopted production postponement because production postponement and information sharing strategies always conflict with each other. Even when the retailer does not benefit from information sharing, we show that the manufacturer can always design an incentive mechanism to induce the retailer to share the demand information, irrespective of whether the manufacturer has already implemented production postponement or not. The above findings underscore the need for a careful assessment of demand uncertainty‐reduction strategies before the supply chain players embark upon them.     

Sustainable planning strategies in supply chain systems: proposal and applications with a real case study in fashion

Abstract

Pollution generated by the fashion industry drives people to pay attention to fashion companies’ sustainability practice. This increase in attention has induced vast literature studying the related area. Since the fashion apparel supply chain is complicated which involves a lot of interrelated steps and decisions, how fashion companies can identify the demand in sustainable fashion and make the right decision in resource allocation throughout the supply chain becomes a critical issue. As a result, this paper examines how a fashion company can develop a successful sustainable planning strategy throughout the sustainable fashion supply chain. The sustainability attributes and the sustainable planning strategy mechanism are also discussed. Based on the institutional theory and resource-based theory, we first analyse the external pressure and internal motivations for companies to adopt a sustainable planning strategy in the fashion supply chain. We then identify the core stakeholders related to the sustainable planning strategy and propose how the decision-making theory can help develop the sustainable supply chain management mechanism. Next, we establish a sustainable planning strategy framework. Finally, via a case study with public data on the fashion giant brand Nike, we explore the application of our proposed sustainable planning strategy framework. The finding suggests that the strategic planning of fashion companies on sustainability can improve the performance of the stakeholders throughout the whole sustainable fashion supply chain.     

考虑异质消费者的线下到线上供应链合作广告契约设计

本文针对一个拥有线上渠道的制造商和一个零售商组成的线下到线上(O2O)供应链,考虑渠道产品差异化策略下零售商为制造商线上渠道进行广告引流,刻画消费者对产品的异质性需求,分别设计对称信息和不对称信息下制造商的最优合作广告契约,通过对比两种情形中最优决策及利润的变化分析信息不对称的影响,并进一步探讨不对称信息下消费者渠道转换的麻烦成本、单位不匹配成本等重要参数对合作广告契约设计和供应链成员利润的影响。研究发现:不对称信息下,制造商可以策略性选择三种不同策略以最大化自身利润,其中不甄别零售商真实信息的混同均衡在某些条件下是制造商的最优策略;尽管信息不对称会给制造商带来利润损失,但制造商通过策略选择可缓和信息不对称的不利影响,某些条件下信息不对称并不损害供应链总体的利润;麻烦成本的变化会改变制造商不对称信息下最优合作广告契约的策略选择,某些条件下麻烦成本的增高对制造商利润反而存在正影响。最后,通过数值仿真对上述研究结果进行直观考察和说明。     

Adapting Zara’s ‘Pronto Moda’ to a value brand retailer

The clothing sector is currently characterised by frequent assortment rotation in stores, a quick response product development and a focus on minimising end-of-campaign stock levels. This paper is based on a case study carried out at a value brand retailer, with a purpose to show how the company increased competitiveness in a market requiring more responsiveness. The case presented shows that the establishment of an adequate supply strategy for differentiated product segments, the introduction of mini-collections, the redesign of business processes (especially the new product development and the order fulfilment processes) and the redesign of the supply chain, lead to a sales increase and purchasing savings. Moreover, the study treats how a value brand retailer, facing different supply chain challenges compared with the leading brands, balance global and local production, lean and agile manufacturing and how it is possible to abandon the traditional two-campaign paradigm in favour of more rapid replenishment.     

供应链整合动力、整合能力与权威分布:基于联泰制衣的案例研究

基于对联泰制衣公司四年连续跟踪调查,论文介绍了一个OEM企业的供应链管理案例。通过对联泰制衣公司供应链整合实践的探索性分析,得到企业参与供应链整合的动力、能力以及供应链权威分布之间的互动关系,形成了一个非强势企业供应链整合动态演化的理论模型。案例研究表明:非强势企业可以选择适当的切入点,采取合理措施,在供应链整合过程中逐步增强话语权,在供应链竞争力提升的同时增强自身的供应链地位,形成一个良性的循环。     

电子市场环境下供应链运作的鲁棒优化模型

本文研究了电子市场环境下的供应链运作问题,提出了不确定环境下的鲁棒优化模型.这一研究的实质是在外界需求最差条件下,如何得到电子市场中供应链最优供应量的策略.文中采用区间方法,设计供应链运作的鲁棒最优策略.进一步,在电子市场不确定环境下,进行了鲁棒策略仿真工作,结果表明鲁棒策略能为决策者提供最坏情况下供应商提供产品数量的鲁棒解决方案.     

Modelling critical success factors for sustainability initiatives in supply chains in Indian context using Grey-DEMATEL

Sustainability assists organisations to enhance ecological, financial and societal performances of their entire supply chains. The present paper uncovers the Critical Success Factors (CSFs) for effective adoption of sustainability initiatives in the supply chain in Indian context. Fifteen CSFs for the successful adoption of sustainability initiatives were identified and finalised firstly from the literature and followed by expert inputs. A methodology based on Grey-Decision Making Trial and Evaluation Laboratory (DEMATEL) was used to envisage the organisation of complex causal relationships between the recognised CSFs. ‘Government Legalisation’ has been found to be the most influential factor and ‘Community Welfare and Development’ is most easily influenced factor. A multiple case example of three automotive companies operating in India is conducted. To the end, some important policy measures and recommendations are proposed to help practicing managers and government bodies to adopt and effectively manage the concepts of sustainability oriented supply chains in India.     

需求和生产成本同时扰动下供应链期权契约应对突发事件

本文研究了单一供应商和单一零售商组成的供应链在期权契约下的应急协调问题。首先证明了稳定条件下的期权契约能够实现该供应链的协调,当突发事件导致随机市场需求分布函数和制造商生产成本同时扰动时,在市场需求和生产成本变化满足一定条件下,供应链最优购买量不变,否则将会发生改变,此时协调被打破;通过调整期权契约能够实现对突发事件的协调应对。最后运用数值实验对模型进行了验证。     

有限需求信息下基于回购契约的供应链鲁棒协调策略

研究了仅知需求均值和区间信息条件下,基于最小最大后悔值准则的供应链回购契约协调问题。针对未知需求具体分布形式的两级供应链系统,在回购契约框架下,建立了以鲁棒决策和最优决策下的供应链及其成员绩效之差为目标函数的供应链协调模型。在仅知需求区间和均值信息条件下,采用鲁棒优化方法求解了最小最大后悔值准则下的集成供应链鲁棒订货策略和分散供应链鲁棒契约协调策略及其绩效偏差。分析了不同服务水平和契约参数条件下,由于信息缺失而未能实现最优运作的供应链及其成员绩效损失情况。最后,进行了数值计算,验证了通过鲁棒优化方法得到的供应链回购契约协调策略的鲁棒性和有效性。结果表明,基于回购契约的供应链鲁棒协调策略能够有效抑制需求不确定性对系统及其成员运作绩效的影响,同仅知需求区间信息相比,额外获得需求均值信息能够有效改进供应链运作绩效。     

Improving supply chain social responsibility through supplier development

Abstract

Corporate social responsibility (CSR) emphasises that the entire supply chain of a company should protect natural environment and contribute to social well-being in a tangible way. This study aims to clarify the effects of supplier development practices on supply chain social responsibility. The investigation uses a qualitative case study approach and empirically explores how to develop supplier’s CSR capabilities in a pharmaceutical supply chain. The results indicate that manufacturers can apply supplier development practices, including standard operating procedures (SOPs), audits, collaboration and training, to develop supply chain social responsibility. SOPs and audits are indirect supplier development practices that are designed in response to institutional pressures, and collaboration and training are direct supplier development practices that provide resources for bridging supplier’s CSR capability gaps. In addition, the indirect and direct supplier development practices positively influence each other and they are complementary in enhancing supply chain social responsibility.     

两级供应链中订货延迟的影响分析

基于报童模型,在1个供应商和2个零售商组成的供应链系统中,建模分析了零售商实行订货延迟策略对自身、供应商和供应链系统的利润影响,得出了它们各自的订货时机偏好,并根据服务水平描绘了供应商和零售商的订货偏好区域分布图,由此得到零售商订货时的Pareto最优区域。研究结果表明,在通常情况下供应商希望零售商预订,而零售商喜欢延迟订货,这和现实情况是相符的。结果还表明,在某些情况下零售商延迟订货对自身有利,但对系统不利;当供应商服务水平较高时,零售商延迟订货对自身、对系统都有利。     

Supply chain integration framework using literature review

Definitions and measures of supply chain integration (SCI) are diverse. More empirical research, with clear definition and appropriate measures are needed. The purpose of this article is to identify dimensions and variables for SCI and develop an integrated framework to facilitate this. A literature review of the relevant academic papers in international journals in Logistics, Supply Chain Management and Operations Management for the period 1995–2009 has been undertaken. This study reveals that information integration, coordination and resource sharing and organisational relationship linkage are three major dimensions for SCI. The proposed framework helps integrate both upstream suppliers and downstream customers with the focal organisation. It also allows measuring SCI using both qualitative and quantitative approach. This study encourages researchers and practitioners to identify dimensions and variables for SCI and analyses how it affects the overall supply chain (SC) performance in terms of efficiency and responsiveness. Although there is extensive research in the area of SCI, a comprehensive and integrated approach is missing. This study bridges the gap by developing a framework for measuring SCI, which enables any organisation to identify critical success factors for integrating their SC, measures the degree of integration qualitatively and quantitatively and suggest improvement measures.