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Chapter 10
Managing Economies of Scale in the Supply Chain: Cycle Inventory
True/False
Cycle inventory exists because producing or purchasing in large lots allows a stage of the supply chain to exploit economies of scale and increase cost.
Answer: False
Difficulty: Moderate
A lot or batch size is the quantity that a stage of the supply chain either produces or purchases at a given time.
Answer: True
Difficulty: Moderate
Cycle inventory is the physical inventory in the supply chain due to either production or purchases demanded by the customer.
Answer: True
Difficulty: Moderate
The inventory profile is a plot depicting the level of inventory over time.
Answer: True
Difficulty: Easy
When demand is steady, cycle inventory and lot size are related as follows:
Cycle Inventory = Lot Size x 2 = Q*2.
Answer: False
Difficulty: Moderate
Lot sizes and cycle inventory do not affect the flow time of material within the supply chain.
Answer: False
Difficulty: Easy
Average flow time resulting from cycle inventory = Cycle Inventory/Demand = Q/2D.
Answer: True
Difficulty: Moderate
Cycle inventory is primarily held to take advantage of economies of scale and reduce profit within the supply chain.
Answer: False
Difficulty: Easy
Increasing the lot size or cycle inventory often decreases the cost incurred by different stages of a supply chain.
Answer: True
Difficulty: Moderate
Cycle inventory exists in a supply chain because different stages exploit economies of scale to lower total cost.
Answer: True
Difficulty: Easy
The costs considered in lot sizing decisions include material cost, fixed ordering cost, and manufacturing cost.
Answer: False
Difficulty: Moderate
The total annual cost is the sum of annual material cost, annual order cost, and annual holding cost, and is given as TC = CD + (D/Q)S + (Q/2)hC.
Answer: True
Difficulty: Moderate
The optimal lot size is referred to as the economic order quantity (EOQ). It is denoted by Q * and is given by the equation: Q* = (2DS/hC.
Answer:
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