Browsing by Keywords "Inventory control"
Now showing items 1-20 of 27
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Age-based vs. stock level control policies for a perishable inventory system
(2001)In this study, we investigate the impact of modified lotsize-reorder control policy for perishables which bases replenishment decisions on both the inventory level and the remaining lifetimes of items in stock. We derive ... -
Analysis of a decentralized supply chain under partial cooperation
(2005)In this article, we analyze a decentralized supply chain consisting of a supplier and two independent retailers. In each order cycle, retailers place their orders at the supplier to minimize inventory-related expected costs ... -
A beam search-based algorithm and evaluation of scheduling approaches for fexible manufacturing systems
(Taylor & Francis, 1998)This paper presents a new algorithm for the flexible manufacturing system (FMS) scheduling problem. The proposed algorithm is a heuristic based on filtered beam search. It considers finite buffer capacity, routing and ... -
Computationally efficient optimization of stock pooling and allocation levels for two-demand-classes under general lead time distributions
(Taylor and Francis Ltd., 2016)In this article we develop a procedure for estimating service levels (fill rates) and for optimizing stock and threshold levels in a two-demand-class model managed based on a lot-for-lot replenishment policy and a static ... -
A continuous review replenishment-disposal policy for an inventory system with autonomous supply and fixed disposal costs
(Elsevier, 2008)In this study, we analyze an inventory system facing stochastic external demands and an autonomous supply (independent return flow) in the presence of fixed disposal costs and positive lead times under a continuous review ... -
Dynamic lot sizing with multiple suppliers, backlogging and quantity discounts
(Elsevier Ltd, 2017)This paper studies the dynamic lot sizing problem with supplier selection, backlogging and quantity discounts. Two known discount types are considered separately, incremental and all-units quantity discounts. Mixed integer ... -
A dynamic rationing policy for continuous-review inventory systems
(Elsevier, 2010)Stock rationing is an inventory policy that allows differential treatment of customer classes without using separate inventories. In this paper, we propose a dynamic rationing policy for continuous-review inventory systems, ... -
Effect of discrete batch WIP transfer on the efficiency of production lines
(Taylor & Francis, 1993)In this paper, the effect of discrete batch transfer of WIP between workstations on the efficiency of asynchronous production lines is analysed via a simulation model. The processing times are assumed to be random variables ... -
End-of-life inventory management problem: new results and insights
(Bilkent University, 2020-09)We consider a manufacturer who controls the inventory of spare parts in the end-of-life phase and takes one of three actions at each period: (1) place an order, (2) use existing inventory, or (3) stop holding inventory ... -
The general behavior of pull production systems: the allocation problems
(Elsevier, 1999)The design of tandem production systems has been well studied in the literature with the primary focus being on how to improve their e ciency. Considering the large costs associated, a slight improvement in e ciency can ... -
A goal programming approach to mixed-model assembly line balancing problem
(Elsevier, 1997)In this paper, a binary goal programming model for the mixed-model assembly line balancing (ALB) problem is developed. The model is based on the concepts developed by Patterson and Albracht [1] and the model of Deckro and ... -
Intraday dynamics of stock market returns and volatility
(Elsevier BV, 2006)This paper provides new empirical evidence for intraday scaling behavior of stock market returns utilizing a 5 min stock market index (the Dow Jones Industrial Average) from the New York Stock Exchange. It is shown that ... -
Inventory control under substitutable demand: A stochastic game application
(John Wiley & Sons, 2002)Substitutable product inventory problem is analyzed using the concepts of stochastic game theory. It is assumed that there are two substitutable products that are sold by different retailers and the demand for each product ... -
An inventory model for recyclable goods with a disposal option
(Bilkent University, 2002-09) -
Inventory performance with pooling: evidence from mergers and acquisitions
(Elsevier, 2015)Theoretical studies show that compared to decentralized inventory management, (i) pooling inventories for different demand sources decreases the optimal safety stock, which in turn decreases inventory costs and (ii) the ... -
An inventory problem with two randomly available suppliers
(Institute for Operations Research and the Management Sciences, 1997)This paper considers a stochastic inventory model in which supply availability is subject to random fluctuations that may arise due to machine breakdowns, strikes, embargoes, etc. It is assumed that the inventory manager ... -
Joint inventory and constant price decisions for a continuous review system
(Emerald Group, 2012)Purpose: The purpose of this paper is to study joint inventory and pricing strategy for a continuous inventory review system. While dynamic pricing decisions are often studied in the literature along with inventory management, ... -
A multi-family dynamic lot sizing problem with coordinated replenishments: a heuristic procedure
(Taylor & Francis, 1993)Consider a manufacturing environment where multiple items are produced. These products are grouped into families due to their similarities in design and manufacturing. It pays off to coordinate the manufacture of products ... -
Multi-item quick response system with budget constraint
(2012)Quick response mechanisms based on effective use of up-to-date demand information help retailers to reduce their inventory management costs. We formulate a single-period inventory model for multiple products with dependent ... -
A note on "continuous review perishable inventory systems: models and heuristics"
(2003)In a recent paper, Lian and Liu (2001) consider a continuous review perishable inventory model with renewal arrivals, batch demands and zero lead times. However, the main analytical result they provide holds only for some ...
