本研究擴展Naddor所提的(T,Si)損壞性存貨的訂貨模式，同時考量通貨膨脹及損壞性存貨兩因素對其之影響，發展出一個關於損壞性存貨之最適訂購模式。本文並以電腦程式代入數值例子以驗證此訂購決策之可行性，另為要瞭解參數值的改變對此模式的影響，本文也做了敏感性分析。

　　　　　This study examines the finite time-horizon (T, Si) policy inventory model for deteriorating items by considering the effects of an inflation subject to different types of pricing policies. The derived model is a generalization of the model considered by Naddor [8], and assists managers in determining a feasible number of replenishments. In addition, a numerical example illustrates the effectiveness of developed model. Sensitivity analysis is also performed.