‎This paper proposes a multi-supplier multi-product inventory model in which the suppliers have unlimited production capacity, allow delayed payment, and offer either an all-unit or incremental discount. The retailer can delay payment until after they have sold all the units of the purchased product. The retailer’s warehouse is limited, but the surplus can be stored in a rented warehouse at a...

in classic inventory control system, we assume that purchasing cost should be paid at time of delivery. but sometimes in order to encourage retailer to increase his order, postpond payment is provided by supplier as an incentive policy for retailer. in this paper a periodic inventory control model is invetigated in which the period between two consecutive replenishmnet is a random variable. in ...

in the supplier selection problem considering both parties benefits including the buyer and the supplier, is one of the key factors to enhance the supply chain management performance as well as sustaining a long term relationship with the suppliers. in fact, the integrated supplier selection models have been discussed in order to confirm the aforementioned subject. in this research, an integrat...

Although at the moment electronic payment via the Internet has no major impact on e-commerce sites, it will be a prerequisite for new business models, such as pay-per-view, and necessary for the success and cost efficiency of future e-commerce applications. Many payment protocols and frameworks for various business domains exist. However, they are incompatible which makes it hard for service de...

This paper examines the necessity of regulating the Iranian card payments system (SHAPARAK) based on the theory of two-sided markets. The expansion of the payment card system in recent years has arisen some questions regarding the role of all kinds of costs and expenses such as interchange fees, cardholder fees, merchant fees, and network externality in balancing the market. Since there is only...

Any payment which uses mobile device as payment method is called M-payment whether it is proximity or remote and online or point of sale. Since it has been identified that mobile phone is everywhere and everpresent essential consumer device, and could be used for payment offline or online, Mobile payment has been hyped significantly. However early market adoption is facing some challenges and i...

In this paper we shall introduce a new electronic payment concept based on the popular direct debit payment model, entitled periodical payments. The direct debit model currently in use online is neither secure nor flexible, and requires a leap of faith by the customer who must trust the merchant to behave honestly. Electronic direct debit request (DDR) forms are not signed by both parties in a ...

This paper presents a generic electronic payment model which is intended for a multi-merchant transaction, in which more than one merchant (the retailer, multiple resellers and content providers) are involved in the distribution of electronic contents. With our payment model, every involved merchant will be notified to verify the license information of a content on the settlement day before the...