# Ch2

3053 WordsJun 28, 201513 Pages
1. Answer the following questions about the case at the start of the chapter. a. Based on the spreadsheet data, how would you characterize Steel Works’ products? What about Steel Works’ customers? Given your answer and the information in the case what does this suggest? b. What does the coefficient of variation tell us? Can you determine the coefficient of variation for the DuraBend™ and DuraFlex™ product lines? c. How much inventory has Steel Works been holding? How much should they have been holding? d. Although no data is given for the Custom Products division, are there any obvious opportunities that are suggested by the information in the case? 參考本章一開始的案例並回答下列問題。 a. 依據電子試算表的數據，如何定義Steel Works的產品特性？Steel…show more content…
Consider the base-stock policy analyzed in Section 2.2.8. Explain why the expected level of inventory after receiving an order is equal to while the expected level of inventory before an order arrives is 試想在2.2.8節中的基本存貨政策分析。解釋為何在接到訂單後的期望存貨水準為 而在接到訂單之前的期望存貨水準為 In the base-stock policy, at the time the warehouse places an order, this order raises the inventory position to the base-stock level (r + L) * AVG + z * STD * . Similar to the reorder level s in the continuous review policy discussed in Question 5, this base-stock includes two components: the average demand (r + L) * AVG until the order arrives after r + L periods, and the safety stock z * STD * that protects against demand uncertainty during lead time. Thus, just before an order arrives, the expected inventory on have is equal to the safety stock z * STD * . In order to determine the expected inventory level right after an order arrives at time t + L, note that when inventory is reviewed at time t, the inventory position is raised to the base-stock level, and an order that was placed at time t - r arrives at time t + L. (See Figure 3-12.) Therefore, when an order arrives, the expected inventory level is L * AVG units less than the base-stock level, i.e., is equal to r * AVG + z * STD * . ------------------------------------------ 8. Imagine that you operate a department store. List five products you sell, and order them from lowest target service level to highest