We study the optimal integrated production/inventory policy in a two-echelon supply chain with one manufacturer and one retailer. The manufacturer produces items in her production facility and keeps the Þnished goods in inventory. The manufacturer’s production facility deteriorates with usage and is subject to failure. Under the assumption that the manufacturer has on-line access to the retaile...

Abstract Not only the amount of product demand but also the prices of the product have a strong impact on a manufacturer’s revenue. In this paper we consider a continuous-time inventory model where the spot price of the product stochastically fluctuates according to a Brownian motion. Should information of the spot price be available, the manufacturer wishes to buy the product from the spot mar...

This paper deals with an inventory system with one central warehouse and a number of identical retailers. We consider perishable-on-theshelf items; that is, all items have a fixed shelf life and start to age on their arrival at the retailers. Each retailer faces Poisson demand and employs (1, T) inventory policy. Although demand not met at a retailer is lost, the unsatisfied demand at the centr...

this research is to survey the relationship between foreign policy of i.r.r. and perspective document in reaching regional superior power. for the first time, in this document, regional approach has been put forwarded. the concept of regional superior power in the document has been taken from two aims: reaching to upper place of scientific, technology, economics, and an effective constructing i...

Developing a closed-form cost expression for an (R,s,nQ) policy where the demand process is compound generalized Erlang Logistics/SCM Research Group 1 Developing a closed-form cost expression for an (R,s,nQ) policy where the demand process is compound generalized Erlang Abstract We derive a closed-form cost expression for an (R,s,nQ) inventory control policy where all replenishment orders have ...

Emulation of Output Queuing (OQ) switches using Combined Input-Output Queuing (CIOQ) switches has been studied extensively in the setting where the switch buffers have unlimited capacity. In this paper we study the general setting where the OQ switch and the CIOQ switch have finite buffer capacity B ≥ 1 packets at every output. We analyze the resource requirements of CIOQ policies in terms of t...