An integrated multistage supply chain inventory model containing a single manufacturer and multiple retailers is proposed to consider deteriorating raw materials finished products with imperfect production inspection systems. The main purpose jointly determine the manufacturer’s delivery strategies retailers’ replenishment maximize total profit. First, individual profit functions of are establi...

Most research in economic manufacturing/order quantity management assumes that all products are of perfect quality and are produced at a constant production rate. One result of this assumption is that the number of units produced in a given period is constant, which is not the case in real life. Most production systems produce items which are of perfect quality along with some that are of imper...

In this paper, we develop an integrated two-echelon supply chain inventory model with a single-manufacturer and multi-retailers in which each retailer’s demand is dependent on selling price of the product. The manufacturer produces single product dispatched order quantities retailers some equal batches. production process imperfect quality products defective percentage random nature follows bin...

In this paper, we consider inventory control problems for deteriorating items with maximum serviceable lifetime under mixed sales situation, both of the demand and deterioration rate are depending on time. A model is presented to formulate process that deteriorated sold consumers together items, where penalty cost products included. From literature search, study one first researches joint inspe...

The quality of products, maintenance operations, and transportation policies are primary concerns managers in inventory production planning issues. Besides that, environmental regulations growing increasingly attracted much attention to green concepts such as sustainable production. Previous authors conducted a wide range research on these problems separately. Regarding the gap an integrated fr...

Today, “Sustainable production” has attracted a great deal of interest by academic researchers and practitioners due to the raising environmental and social concerns. Sustainable EPQ model has been developed as a result of this interest and also necessity. This paper develops a novel sustainable EPQ (SEPQ) model under partial backordering consideration. The model converts all emission variation...

This paper considers the scenario of supply chain with multiple products and multiple suppliers, all of which have limited capacity. We assume that received items from suppliers are not of perfect quality. Items of imperfect quality, not necessarily defective, could be used in another inventory situation. Imperfect items are sold as a single batch, prior to receiving the next shipment, at a dis...

We study a stationary, single-stage inventory system, under periodic review, with fixed ordering costs and multiple sales levers (such as pricing, advertising, etc.). We show the optimality of (s, S)-type policies in these settings under both the backordering and lost-sales assumptions. Our analysis is constructive, and is based on a condition which we identify as being key to proving the (s, S...

Traditionally, the inventory models available in literature assume that all articles purchased lot are perfect and demand is constant. However, there many causes provoke presence of defective goods dependent on some factors. In this direction, paper develops an economic order quantity (EOQ) model for imperfect quality items, taking into account ones sent as a single to repair shop reworking. Af...