In the literature of inventory after the development of classical economic order quantity (EOQ) model researchers extensively studied several aspects of inventory modeling by assuming constant demand rate. But in a real market demand of a product is always dynamic state due to the variability of time, price or even of the instantaneous level of inventory displayed in retail shop. This impressed...

Determining an order quantity when quantity discounts are available is a major interest of material managers. A supplier offering quantity discounts is a common strategy to entice the buyers to purchase more. In this paper, EOQ models with incremental discounts and either full or partial backordering are developed for the first time. Numerical examples illustrate the proposed models and solutio...

PT XYZ merupakan perusahaan manufaktur yang memproduksi minuman ringan. Permasalahan tersebut muncul dari segi pengendalian persediaan dilakukan oleh belum mencapai hasil optimal. Diketahui melalui penerimaan bahan baku ke ini, dan sering terjadi kenaikan penurunan pemesanan, sehingga biaya pemesanan menjadi lebih tinggi. Tujuan penelitian ini adalah untuk memberikan penawaran baku, pembelian e...

This study revisits a fuzzy rough economic order quantity (EOQ) model for deteriorating items considering quantity discount and prepayment. Since the proposedmodel is amixed integer nonlinear programming type, it is solved using Meta heuristic algorithms. Based on three different case examples, we have shown that our results using the Bees Colony Optimization (BCO) algorithm performs better tha...

This paper considers a deteriorated multi-item economic order quantity (EOQ) problem, which has been studied in literature, but the algorithms used in the literature are limited. In this paper, we explore the optimal policy of this inventory problem by analyzing the structural properties of the model, and introduce a simple algorithm for solving the optimal solution to this problem. Numerical r...

Raw material procurement policies play an important role in the production activities of a company. In order to maintain customer trust, PT. XYZ is very concerned about quality and timeliness products it produces. This research was conducted analyze raw apply Economic Order Quantity (EOQ) method which considered effective as measure optimize inventory control efforts minimize total costs. study...

From our review on sustainable EOQ inventory models, most researchers did not include carbon emission in the objective function or constraint. In this study, we enrich recent research by incorporating sustainability criteria into model. The study develops an model considering that comes from transportation and warehouse operations. Moreover, also consider imperfect quality items assume complete...

Most of the real-world optimization problems involve multiple objectives with constraint resources. Retailers oftentimes anticipate demand, they stock, and maintain warehouses different variety products at high cost to meet prospecting customers' demand. In this paper, a Non-preemptive Integer Nonlinear Goal Programming (NINGP) model was developed for obtaining Economic Order Quantities (EOQ) m...