In this paper a deterministic inventory model with imperfect quality have been developed for deteriorating items with two parameters Weibull distribution deterioration and time dependent holding cost. Shortages are allowed and are completely backlogged. The model has been framed to study the items whose deterioration rate increase with time under permissible delay in payments with imperfect qua...

In this paper, the study attempts to determine the optimal capital investment in setup cost reduction and optimal lot sizing policies for an economic order quantity (EOQ) model with random yields. The setup cost is treated as the function of capital expenditure in technology. The study shows that the expected total annual cost functions with capital investment is convex and develop a solution p...

This paper deals with the problem of determining the optimal retailer’s replenishment decisions for deteriorating items under two levels of trade credit policy within the economic order quantity (EOQ) framework to reflect the supply chain management situation. We investigate the retailer's inventory system as a cost minimization problem to determine the retailer's optimal inventory policy under...

This paper deals with an economic order quantity model where demand is stock dependent. Items received are not of perfect quality and each lot received contains percentage defective imperfect quality items, which follow a probability distribution. Two cases are considered. 1) Imperfect quality items are held in stock and sold in a single batch after a 100 percent screening process. 2) A hundred...

In this paper, an EOQ inventory model is depleted not only by time varying demand but also by Weibull distribution deterioration, in which the inventory is permitted to start with shortages and end without shortages. A theory is developed to obtain the optimal solution of the problem; it is then illustrated with the aid of several numerical examples. Moreover, we also assume that the holding co...

Supply chain management is concerned with the flow of material and information linking across suppliers & users. The coordination among processes plays vital role when different types of products are moving from many suppliers to number of buyers and it turns into more difficult phase when products are deteriorating in nature. Current study employs the same bases to develop a model, where deter...

An EOQ model of inventory for items with linear rate of deterioration is considered, taking the demand rate to be dependent on the stocjk level at any instant of time. The Payments are permitted to be delayed up to certain period of time. Shortages are not allowed. After the certain period, a special discount is permitted to reduce the stock in inventory because if the stock is holded, an inter...

The main purpose of this paper is to investigate the retailer’s optimal replenishment policy under permissible delay in payments within the economic order quantity (EOQ) framework. Previously published articles dealing with optimal order quantity with permissible delay in payments assumed that the supplier only offers the retailer single trade credit period. In fact, most suppliers frequently o...