In this study, from the user’s perspective, a spare ordering policy for replacement of a non-repairable product/one-unit system, which with finite useful lifetime limit under a rebate warranty, is developed. The spare unit for replacement is available only by an order and the lead-time for delivering that spare is random. By introducing the gain due to rebate warranty, and the costs due to orde...

We consider a multi-product serial two echelon inventory system with stochastic demand. Inventories at the downstream location are replenished periodically using an automatic ordering system. Under vendor managed inventory strategies the upstream stage is allowed to adapt these orders in order to benefit from economies of scale. We propose three different VMI strategies, aiming to reduce the or...

This study is the first to consider a distribution-free approach in newsvendor model with transfer of risk and back-ordering. Previously, many articles, discrete demand considered. In this model, we selling single seasonal item price-dependent stochastic demand. Competition markets has forced retailer manufacturer coordinate decentralized supply chain management. A coordination contract made be...

in this paper, a mathematical method is proposed to formulate a generalized ordering problem. this model is formed as a linear optimization model in which some variables are binary. the constraints of the problem have been analyzed with the emphasis on the assessment of their importance in the formulation. on the one hand, these constraints enforce conditions on an arbitrary subgraph and then g...

In this paper we specify the conditions on the parameters of pairs of gOS’s under which the corresponding generalized order statistics are ordered according to usual stochastic ordering, hazard rate ordering, likelihood ratio ordering and dispersive ordering. We consider this problem in one-sample as well as two-sample problems. We show that some of the results obtained by Franco et al. ...

INTRODUCTION Prescribing medication is an important aspect of almost all in-hospital treatment regimes. Besides their obviously beneficial effects, medicines can also cause adverse drug events (ADE), which increase morbidity, mortality and health care costs. Partially, these ADEs arise from medication errors, e.g. at the prescribing stage. ADEs caused by medication errors are preventable ADEs. ...

The use of VMI at Wal-Mart on a large scale has attracted a great deal of attention in the industrial world. In a VMI program, the supplier assumes control of the inventory management for one or more retailers (Fry, 2002). The supplier monitors the inventory level at the retailers and makes the decisions related to the quantities of replenishment and the timing of shipments to the retailers. It...

In this paper, a multi-product continues review inventory control problem within batch arrival queuing approach (MQr/M/1) is modeled to find the optimal quantities of maximum inventory. The objective function is to minimize summation of ordering, holding and shortage costs under warehouse space, service level, and expected lost-sales shortage cost constraints from retailer and warehouse viewpoi...