This paper will discuss determinants of supplier selection and evaluation, their impact on business key performance indicators with a focus on telecom companies. This research is causal by nature. Interviews were conducted from the heads, managers and specialists of the supply chain department. Data was gathered through questionnaire distributed among the practitioners. Different statistical to...

Environmental responsibility has become an important part of doing business. Government regulations and customers’ increased awareness of environmental issues are pushing supply chain entities to reduce the negative influence of their operations on the environment. In today’s world, companies must assume joint responsibility with their suppliers for the environmental impact of their actions. In...

R auctions are fast becoming the standard for many procurement activities. In the past, the majority of such auctions have been solely price based, but increasingly attributes other than price affect the auction outcome. Specifically, the buyer uses a scoring function to compare bids and the bid with the highest score wins. We investigate two mechanisms commonly used for procurement in business...

The input to the tollbooth problem is a graph G = (V,E) and a set of m buyers Pi where each buyer is interested in buying a path Pi connecting si, ti ∈ V . Each buyer comes with a budget b(Pi), a positive real number. The problem is to set non-negative prices to the edges E of G. A buyer buys her path Pi if the sum of prices on Pi is at most her budget. If a buyer buys her path, we obtain a pro...

A revenue-maximizing monopolist is selling a single indivisible good to buyers who face a loss if a rival buyer obtains it. The rivalry is modeled through a network, an arc between a pair of buyers indicates that a buyer considers another buyer its rival, and the magnitude of the loss is the private information of each buyer. First, given a network, we characterize the optimal mechanism. Second...

A well functioning reputation and feedback system is foundational in consumer-to-consumer electronic commerce, an example of which is the electronic auction. Our interest in this paper is the analysis of the predictive power of both buyer and seller comments in determining the resolvability of transaction disputes in online auctions. Using data gathered from the eBay, Inc. reputation system, we...