What does inventory aging measure in retail?

Inventory aging measures how long items have been sitting in a retailer's inventory. This metric is crucial for managing stock levels and determining when to replenish or discount products. Understanding the age of inventory helps retailers make informed decisions about which items may need to be sold off quickly to avoid excess stock and potential losses.

In the context of replenishment decisions, inventory aging can signal when products that haven't sold quickly may need to be promoted or marked down to make way for newer items. Thus, it directly impacts a retailer's inventory management strategy and can help optimize sales and cash flow.