Developing a supplier selection system through integrating fuzzy AHP and fuzzy DEA: a case study on an auto lighting system company in Taiwan

Supplier selection plays a very important role in supply chain management. This study intends to develop a novel performance evaluation method, which integrates both fuzzy analytical hierarchy process (AHP) method and fuzzy data envelopment analysis (DEA) for assisting organisations to make the supplier selection decision. Fuzzy AHP method is first applied to find the indicators’ weights through expert questionnaire survey. Then, these weights are integrated with fuzzy DEA. We use α -cut set and extension principle of fuzzy set theory to simplify the fuzzy DEA as a pair of traditional DEA model. Finally, fuzzy ranking using maximising and minimising set method is able to rank the evaluation samples. A case study on an internationally well-known auto lighting OEM company shows that the proposed method is very suitable for practical applications.     

Supplier code of conduct–state-of-the-art and customisation in the electronics industry

In the field of corporate social responsibility (CSR), one efficient way to improve the ethical behaviour of a company is the implementation of a code of conduct. When focused on suppliers, this code is referred to as the supplier code of conduct (SCoC). Specific, application-oriented research on SCoCs is rare. The main goals of the present article are to define the state-of-the-art in SCoCs and to show how this review can be used in industrial practice when defining a company-specific SCoC. This article uses the electronics industry as an example. The state-of-the-art review of the content of the SCoCs is structured in five main categories of issues: labour standards, health and safety, environment, ethics and compliance. The practical relevance of this review is demonstrated by applying it in the development of a customised SCoC for a company as a part of the company's corporate risk management activities. This review uses the content analysis of SCoCs based on the website disclosures of the Forbes Fortune 2000 (Technology Hardware & Equipment) companies; which yielded 24 SCoCs. The application was done in an action research framework with a partner company, and the results were verified with the help of a focus group consisting of 10 companies.     

The Role of Contract Negotiation and Industry Structure in Production Outsourcing

Despite the spread of cost‐driven outsourcing practices, academic research cautions that suppliers' cost advantage may weaken manufacturers' bargaining positions in negotiating outsourcing agreements, thereby hurting their profitability. In this study, we attempt to further understand the strategic impact of low‐cost outsourcing on manufacturers' profitability by investigating the contractual form of outsourcing agreements and the industry structure of the upstream supply market. We consider a two‐tier supply chain system, consisting of two competing manufacturers, who have the option to produce in‐house or to outsource to an upstream supplier with lower cost. To reach an outsourcing agreement, each manufacturer engages in bilateral negotiation with her supplier, who may be an exclusive supplier or a common supplier serving both manufacturers. Our analysis shows that wholesale‐price contracts always mitigate the competition between manufacturers regardless of whether they compete with price or quantity. In contrast, two‐part tariffs intensify the competition when the manufacturers compete with quantity, but soften it when they compete with price. As a result, when outsourcing with two‐part tariffs, the manufacturers may earn lower profits than they would from in‐house production, although the suppliers are more cost efficient. This suggests that managers have to be wary about the downside of using coordinating contracts such as two‐part tariffs when pursuing low‐cost outsourcing strategies. Our analysis also sheds some light on the profitability of using an exclusive supplier for outsourcing. When outsourcing with wholesale‐price contracts, the competing manufacturers are better off outsourcing to an exclusive supplier. However, when outsourcing with two‐part tariffs, the manufacturers may earn higher profits by outsourcing to a common supplier than to an exclusive one when the manufacturers' bargaining power is sufficiently strong (weak) under quantity (price) competition.     

低碳经济发展模式下供应商选择问题研究

供应商选择问题是供应链运营的核心,在碳排放约束下,对供应商的选择有了新的要求。从企业能力、碳排放水平和服务水平等三个方面评价供应商。采用熵权法,构建供应商评价指标体系和评价模式,完善供应商评价理论,研究低碳经济发展模式下,考虑碳排放成本存在差异的供应商选择问题。通过算例分析,为制造商选择供应商提供实践指导。     

供应中断情况下基于备份供应商的应急决策分析

在供应商-制造商二级供应链中,制造商作为领导者,采用一个战略供应商和一个备份供应商。有两种期权执行模式,一种是需求未知情况下提前向备份供应商订货的推式订货模式,另一种是获知需求后再向备份供应商订货的推式与拉式相结合的订货模式。证明了所建模型均为凸规划,并利用Karush-Kuhn-Tucker条件求得备份供应商的能力预定量、战略供应商订货量以及最优利润的表达式,得出了是否采用备份供应商的临界值。研究结果表明：推式模式下战略供应商的订货量较大,推拉结合模式下备份供应商的能力预定量较大,推拉结合模式下制造商的利润较大;随着战略供应商可靠性系数的增大,推式模式下首先放弃备份供应商的使用;当战略供应商的采购成本、备份供应商的期权执行成本和缺货成本较大,且残值以及可靠性系数较小时,推拉结合模式相对于完全推式的效果更加明显。     

Relational stability and alliance performance in supply chain

Drawing on the theories of social exchange and goal interdependence, this paper examines the antecedents of relational stability in supply chain alliances and if the stability affects alliance performance in supply chain in the context of manufacturing firms. The results show that both relational commitment and trust of supplier have positive effects on relational stability in supply chain alliance, which in turn positively affects the alliance performance. These results have important implications for researchers investigating the effectiveness of supply chain alliances as well as practitioners seeking to improve alliance performance in supply chain.     

绿色环保压力与企业逆向物流绩效关系研究

以广东省珠三角地区609家企业为研究对象,对绿色环保压力与逆向物流绩效之间滗的关系进行实证研究.首先将绿色环保压力划分为政策法规、消费者、竞争者和供应商4个因素,将逆向物流绩效划分为直接绩效和间接绩效两个因素.实证结果表明,绿色环保压力中的4个要素对企业逆向物流绩效均有显著影响,不同规模的企业在逆向物流直接绩效方面有显著差异,大型企业的逆向物流绩效要明显优于小型企业,设立物流经理的企业逆向物流绩效明显优于不设立物流经理的企业.根据上述实证研究的结论,分别从政府、企业、消费者和供应商4个方面提出促进中国企业逆向物流活动的建议.     

关系激励管理对供求企业绩效影响的实证研究

有效的供求关系激励管理方式设计,以及这种管理方式如何影响供求双方的绩效,是目前国内理论界和企业界都十分关注的问题之一。本文试图从采购企业角度出发探讨关系激励管理方式对供求企业绩效的影响。首先解释了激励型供应商管理方式的指标测度体系,然后通过对国内近百家企业问卷调查的统计分析,得出了如下两个主要结论:激励型管理方式与采购企业业绩之间存在正相关关系;激励型管理方式与供应商业绩之间存在正相关关系。这不仅证实了合作能够创造"双赢"局面的理论观点,而且也为国内企业供应商管理的具体实践提供了理论上的指导。     

基于不确定条件下的供应商参与协同设计决策分析

以供应商参与协同设计所承担任务比例,作为其参与程度的定量指标,考虑研发不确定性,从供应商角度出发寻求其最适合的参与程度。研究结果表明,对于供应商而言,其参与受双方相对边际利润和开发能力,以及新产品市场不确定性的限制。供应商参与分担制造商部分设计任务有一个最适当的比例,该比例与其自身边际利润及技术开发能力正相关,与制造商边际利润以及技术开发能力负相关,与产品市场成功概率负相关。     

供应商参与技术创新研究--基于宝钢集团的案例分析

供应商与其用户(主要是制造商)之间的合作创新模式是突破原来仅仅是产业链上下游的销售关系,扩展成相互支持的战略伙伴关系,从而打造有竞争力的供应链.通过对我国最大的钢铁公司--宝钢集团作为供应商参与技术创新模式的研究,来阐述这一合作创新模式的意义.