In this paper, it was an attempt to be present a practical perishability inventory model. The proposed model adds using spoilage of products and variable prices within a time period to a recently published location-inventory-routing model in order to make it more realistic. Aforementioned model by integration of strategic, tactical and operational level decisions produces better results for sup...

We examine the effects of product variety and inventory levels on store sales. Using 4 years of data from stores of a large retailer, we show that increases in product variety and inventory levels are both associated with higher sales. We also show that increasing product variety and inventory levels has an indirect negative effect on store sales through their impact on phantom products—product...

An interesting class of production/inventory control problems considers a single product and a single stocking location, given a stochastic demand with a known non-stationary probability distribution. Under a widely-used control policy for this type of inventory system, the objective is to find the optimal number of replenishments, their timings and their respective order-up-to-levels that meet...

In order to investigate the efficiency of policies made by the industrial administration office (IAO for short) so as to keep market order, the authors propose a shocked inventory model of one product with both genuine and counterfeit qualities. The checking policies made by the IAO are considered to be a random shock for the inventory model by examination of the qualities of the products, whic...

This paper proposes tools which will be used to optimize multi-level assembly under lead time uncertainty. One type of finished products and several types of components are considered. We suppose that each component has a fixed unit inventory cost and the finished product has backlogging and inventory holding costs per unit of time. The lead times of components are discrete random variables, an...

We develop a theoretical model about how organizations cope with the bullwhip effect created by consumer demand uncertainty through product modularity and information sharing across the supply chain. Unpredictability of consumer demand is likely to accentuate inventory flows in the supply chain. Information sharing and product modularity can be used by organizations to mediate the impact of unc...

Vendor-managed inventory (VMI) is one of the emerging solutions for improving the supply chain efficiency. It gives the supplier the responsibility to monitor and decide the inventory replenishments of their customers. In this paper, an integrated location–inventory distribution network problem which integrates the effects of facility location, distribution, and inventory issues is formulated u...

Mutually connected business processes have both logistics process and planning and control components. The Little's theorem describes that for a queuing system in stationary situation, average demand rate multiplied by average number of inventory is average lead time. This paper shows what role a planning and control component plays in forming such a dynamic property of a business process as a ...

Cost-based filtering is a promising technique able to improve search performance in combinatorial optimization problems. Such a technique has already been successfully applied to stochastic inventory control problems. We focus on the class of production/inventory control problems that considers a single product and a single stocking location, given a stochastic demand with a known non-stationar...

Separate literatures exist to describe responses of timber owners and aggregate timber supply to product prices. While few investigators have alluded to the effects of varying inventory quality and ownership mix on the aggregate response, it is possible to describe how the responsiveness to prices can vary over time as the vintage of the timber inventory shifts. We estimated a probit harvest mo...