Purchasing plan.
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PURCHASING PLAN PROBLEM An optimized schedule of purchasing orders is required, however, there is uncertainty as to demand. There is a chance that each month demands could be 30% higher than projected. This creates competing constraints of inventory costs versus purchasing costs. More specifically, each lot of purchasing incurs a fixed cost of $150 without regard to the number of items purchased. This constraint argues for purchasing large lots. However, an inventory cost of $1 per unit per month is incurred as well. Thus, this cost driver tends to push the purchasing decision back towards smaller more frequent lot orders. There are also costs associated with purchasing too little or too much. If available inventory comes up short in any given month, extra charges for special ordering are incurred. If demand exceeds on-hand supply, special order costs of $10 per unit are incurred to fill the back orders, as well as the...


