Supplier selection and evaluation is increasingly seen as a strategic issue for companies. Unlike the past, an emerging trend is to select suppliers where a long-term relationship is desired and supplier involvement in product development is required and to sort suppliers into categories based on performances. This paper describes a supplier evaluation and management methodology for strategic s...

We study the effects of credit risk in a supply chain where one retailer deals with competing risky suppliers who may default during their production lead-times. The suppliers, who compete for business with the retailer by establishing wholesale prices, are leaders in a Stackelberg game with the retailer. The retailer, facing uncertain future demand, chooses order quantities while weighing the ...

In this paper, we discuss the problem of selecting suppliers for an organisation, where a number of suppliers have made price offers for supply of items, but have limited capacity. Selecting the cheapest combination of suppliers is a straightforward matter, but purchasers often have a dual goal of lowering the number of suppliers they deal with. This second goal makes this issue a bicriteria pr...

nowadays, suppliers in order to maintain and improve their positions against othernational and international suppliers take advantage of their brand equity, but the problem is that industrial suppliers do not know what factors are influencing for development and promotion industrial brand equity and also do not know how to enhance brand equity, to improve brand performance in industrial markets...

Using a real options framework, we value and analyze supply contracts characterized by exchange rate uncertainty, order quantity flexibility and supplier-switching options. Analogous to the portfolio optimization framework, our framework analyzes the incentives that the suppliers face in accepting order level flexibility. The resulting tradeoff (for the supplier) is a balance between greater vo...

Given the impact of transportation costs on both supplier selection and inventory replenishment decisions in today’s enterprises, this article addresses both problems simultaneously by proposing a mixed integer nonlinear programming model to properly allocate order quantities to the selected set of suppliers while taking into account the purchasing, holding and transportation costs under suppli...

Service operations like call center operations and business processes are being outsourced to offshore locations because of many operational reasons including cost savings. The main trade-off is the lack of control on service quality. When multiple suppliers are operating and service requirements are allocated to one or another, differential quality level is especially being an irritant to the ...

This paper evaluates the joint impact of exclusive channels and revenue sharing on suppliers and retailers in a hybrid duopoly common retailer and exclusive channel model. The model bridges the gap in the literature on hybrid multichannel supply chains with bilateral complementary products and services with/without revenue sharing. The analysis indicates that, without revenue sharing, the suppl...

pioglitazone (pg) is one of thiazolidinediones used for the treatment of type ii diabetes mellitus. some reports of its hepatotoxicity exist, but the mechanism of its hepatotoxicity is not well known. in the present study, the protective effect of some atp suppliers are investigated against mitochondrial toxicity of pg in isolated rat mitochondria. mitochondrial viability was investigated by mt...

For companies operating under unfavourable macroeconomic conditions, such as high wage / high tax countries in central Europe, innovation has become a central theme to survive. If there is one thing that has changed in innovation management during the last decade, it is the growing reliance on external sources of technology. As a consequence, a new task for purchasing arises, as firms need an u...