Inspired by prescription drug affordability practices, we study how a buyer may achieve cost reduction by combining a procurement process with quantity-dependent pricing contracts and exclusion clauses, the latter of which has been commonly adopted in contracting but rarely executed. We analyze the equilibrium outcomes when the buyer simultaneously or sequentially negotiates with imperfectly su...

This paper considers four options of warranty and preventive maintenance policy. The product is repairable and sold with a non-renewing free warranty policy. For products sold with warranty, preventive maintenance (PM) actions by manufacturers and/or buyers have an impact on the total costs for both parties. In this study, we deal with a model to study the effect of PM that carried out by the m...

We consider a stochastic inventory control problem in which a buyer makes procurement decisions while facing periodic random demand and two supply sources, namely, a long-term contract supplier and a spot market. The contract between the buyer and the supplier partially shields the latter from the vicissitudes of the spot market, in that the price paid by the buyer to the supplier is only parti...

On-line commercial transactions involve an inherent mistrust between participant parties since, sometimes, no previous relation exists between them. Such mistrust may be a deadlock point in a trade transaction where the buyer does not want to perform the payment until the seller sends the good and the seller does not want to do so until the buyer pays for the purchase. In this paper we present ...

With a privacy-aware reputation system, an auction website allows the buyer in a transaction to hide his/her identity from the public for privacy protection. However, fraudsters can also take advantage of this buyer-anonymized function to hide the connections between themselves and their accomplices. Traditional fraudster detection methods become useless for detecting such fraudsters because th...

This study focuses on the antecedents and consequences of Internet buyer regret in the overall purchasing process. We examine the roles that search effort, service-attribute evaluations, product-attribute evaluations and post-purchase price perceptions play in determining buyer regret and satisfaction in e-commerce. Furthermore, the study examines the consequences of regret and satisfaction in ...

Digital watermarking protocols are the one, which have combined fingerprinting technique with watermarking, for embedding digital signal or watermark into an original multimedia object. Buyer-seller watermarking protocol is fundamentally applied to continue the digital rights of both buyers and seller. We proposed an identity-based buyer-seller watermarking protocol that encounters various weak...

A monopolist seller has multiple units of an indivisible good to sell over a discrete,finite time horizon. Potential buyers with unit demand arrive and depart over thisperiod. Each buyer privately knows her arrival time, her value for a unit and the timeby which she must make a purchase. We study the revenue maximizing Bayes-Nashincentive compatible allocation rule. The allocati...

This paper studies market schemes in which auctions are used to coordinate the buyer and competing suppliers in a procurement setting. While auction is typically considered a price-determination mechanism, it could also serve as a coordination mechanism. Possible auction and market mechanisms and their expected payoffs are analyzed in a two-supplier, one-buyer system. The auction mechanism coul...

Following the work of Babaioff et al [4], we consider the pricing game with strategic vendors and a single buyer, modeling a scenario in which multiple competing vendors have very good knowledge of a buyer, as is common in online markets. We add to this model the realistic assumption that the buyer has a fixed budget and does not have unlimited funds. When the buyer’s valuation function is addi...