This paper develops EOQ-based models with perishable items to evaluate the impact of a form postponement strategy on the retailer in a supply chain. We formulate models for a postponement system and an independent system to minimize the total average cost function per unit time for ordering and keeping n perishable end-products. An algorithm is given to derive the optimal solutions of the propo...

This paper describes how the proper priority structure of non-linear goal programming (NLGP) model can be selected for obtaining economic order quantity(EOQ) of multi-item inventory problems. In the solution process, sensitivity analysis of the priority under the given weight structure of goals has been performed. A set of solution is obtained. From the solutions, the ideal solution is identifi...

PT SBP merupakan perusahaan manufaktur produsen Paper Bag dan Karton Box ekspor untuk kebutuhan Shopping Packaging. Permasalahan yang sering dihadapi oleh PT. adalah mengenai pengendalian bahan baku produksi hanya saja dalam hal ini bentuk persiapan masih bisa dibilang manual atau tradisional dengan menggunakan perkiraan saja, sehingga harus melakukan pemesanan berulang-ulang berakibat pada pem...

Inventory control has an important role to maintain the stability of company's business continuity. With inventory control, companies can meet consumer needs and consumers will feel satisfied if demand comes on time. On other hand, with this focus company management must also be careful raw material is too large, it result in high costs, there little inventory, unfulfilled needs. The purpose st...

The Internet is becoming increasingly important as a sales channel. Thus, most large retail firms have adopted a multi-channel strategy that includes both web-based channels and pre-existing off-line channels. Since competition exists between these two channels, for a supply chain with a dual-channel retailer, pricing in one channel will affect the demand in the other channel. This subsequently...

In this study, an EOQ (Economic Order Quantity) inventory mathematical model is constructed for a deteriorating item having time dependent demand when delay in payment is permissible. The deterioration rate is assumed to be a constant and the time varying demand rate is taken to be an exponential declining function of time. Mathematical models are also derived under two different circumstances,...

Inventory management at a single or multiple levels of a supply chain is usually performed with computations such as Economic Order Quantity or Markov Decision Processes. The former makes many unrealistic assumptions and the later requires specialist Operations Research knowledge to implement. Dynamic Bayesian networks provide an alternative framework which is accessible to non-specialist manag...

In the past few decade researches have developed their EOQ models under constant deterioration and constant demand. However, it is not true in actual practice. In this paper, we have established inventory model with exponential time-dependent demand and timedependent time-dependent deterioration. Shortages are allowed. The demand rate and unit production cost both are considered as proportional...

This paper studies the economic-order-quantity model (EOQ) for deteriorating items in two cases (with and without shortages) to evaluate how vendor managed inventory (VMI) affects supply chain. We consider two-level supply chain (single supplier and a single retailer) with one instantaneous deteriorating item. A numerical example and sensitivity analysis are provided to illustrate the effect of...