Discuss inventory positioning, and the differences between centralized and decentralized inventory

Answer 1

Inventory positioning focuses on the issue of where inventory is located within the supply chain. One strategy is to hold a centralized stock of inventory at a single location such as the origin point or some other advantageous location in the supply chain. Product is distributed to customers across the network from this central stocking point. The benefit of this consolidation strategy is greater control over the inventory and reduced demand variability due to risk pooling. The central or national inventory pool supports higher in-stock availability, though there is a need for less safety stock.

The drawback of centralized inventory is the long distance to customers, which typically extends lead times and results in higher transportation costs. Despite these drawbacks, manufacturers of high-value, low-weight products such as prescription pharmaceuticals often rely on one strategically placed inventory pool. The transportation costs associated with next-day and second-day order delivery are offset by the reductions in inventory carrying costs, the enhanced visibility of product flows, and the improved control over order-filling processes, product pedigree issues, and recall events.

The alternate inventory positioning strategy is to hold product in multiple customer- facing positions. Stocking inventory regionally or locally helps to reduce customer delivery costs and order cycle time. Product is positioned closer to demand points and can be readily dispatched to meet customer requirements. This decentralized inventory strategy works well for high-volume, low-cost products with low demand uncertainty such as laundry detergent, pet food, and cereal.

The decentralized inventory strategy is not without challenges. First, more facilities are required to stock the product, leading to higher handling costs, the risk of product damage, and the potential for product pilferage, not to mention the additional expenses of running the facilities. Also, average inventory levels will rise as each facility will have to hold safety stock to cover demand variation within the region. To combat these issues, some organizations have shifted toward more centralized distribution systems with fewer stocking points. Which inventory positioning strategy is best? There is no single answer, and many organizations use both strategies.