In this paper we analyze heterogeneity and asymmetry of ordering behavior in high-profit low-profit product settings as well applicability the reference dependent newsvendor model with different psychological costs overordering underordering. Further, introduce a mean preserving by extending overconfident to non-negative confidence parameters. For these models provide simple intuitive condition...

A judiciously chosen symmetric permutation can signiicantly reduce the amount of storage and computation for the Cholesky factorization of sparse matrices. On distributed memory machines, the issue of mapping data and computation on processors is also important. Previous research on ordering for paral-lelism has focussed on idealized measures like execution time on an unbounded number of proces...

Background In light of rising healthcare costs and evidence of inefficient use of medical resources, there is growing interest in reducing healthcare waste by clinicians. Unwarranted lab tests may lead to further tests, prolonged hospital stays, unnecessary referrals and procedures, patient discomfort, and iatrogenic anemia, resulting in significant economic and clinical effects. Blood tests ar...

Consolidating orders in inventory management increases order size, exploits economy of scale, and potentially lowers costs. But it is not always apparent how to divide up the resulting lower costs. The analysis of cost allocation in different inventory settings has a name and is now referred to as Inventory Games. This work examines collaborative procurement for the EOQ model for multiple items...

The ability to determine the optimal frequencies and offsets for independent and unrestricted ordering cycles for multiple items can be very valuable for managing storage capacity constrained facilities in a supply chain. The complexity of this problem has resulted in researchers focusing on more tractable surrogate problems that are special cases of the base problem. This research has focused ...

In this paper, the cost function for a three-echelon inventory system with two warehouses is derived. Transportation times are constant and retailers face independent Poisson demand. Replenishments are one-for-one. The lead time of a retailer is determined not only by the constant transportation time but also by the random delay incurred due to the availability of stock at the warehouses. We co...

Preference Inference involves inferring additional user preferences from elicited or observed preferences, based on assumptions regarding the form of the user’s preference relation. In this paper we consider a situation in which alternatives have an associated vector of costs, each component corresponding to a different criterion, and are compared using a kind of lexicographic order, similar to...

demand is assumed constant in the classical economic order quantity (eoq) model. however, in the real world, the demand is dependent on many factors such as the selling price, warranty of product and marketing effort. in addition pricing and ordering quantity decisions are interdependent for a seller when demand for the product is price sensitive in the inventory models. these types of models a...

We investigate how the retailer adjusts optimal ordering policy in the presence of cap-and-trade system and trade credit, and the corresponding changes of the retailer’s total costs and carbon footprint. Trade credit is one of the most used short-term financing tools. Our study shows that carbon emissions trading will shorten the ordering cycle for products that emit more carbon dioxide during ...