supply chain with a manufacturer and a retailer found information sharing is significant under all condition. Similarly, across all conditions, capacity is shown to be significant on the reduction of holding costs. Although both capacity and information sharing are significant under every condition, the interaction effects are not studied. РSimilarly, an paring customer demand and inventory information sharing versus no information sharing between a retailer and supplier finds that there is a significant improvement when sharing customer demand and inventory information versus no information sharing. However, the improvement is not from information sharing but instead from information technologies that force lead time and batch size reductions. An parison of a two-echelon supply chain with