Final answer:
Inventory turnover is the metric that measures how efficiently inventory moves through the supply chain. It reflects how often inventory is sold or used within a specific timeframe, indicating the management efficiency of stock levels.
Step-by-step explanation:
The inventory performance metric that measures how efficiently inventory moves through the supply chain is a) the inventory turnover. Inventory turnover is a key metric used in supply chain management to assess how often inventory is sold or used over a certain period of time. A higher inventory turnover rate typically indicates that items are selling quickly, implying efficient management of stock levels. It's calculated by dividing the cost of goods sold by the average inventory. In contrast, b) dwell time refers to the length of time inventory stays in one part of the supply chain, c) the in-stock rate measures the availability of products for sale, and d) the fill rate measures the percentage of customer orders that are fulfilled on the first shipment.
The correct option is a) the inventory turnover