1) Amazon started as an online retailer in 1995 selling books without holding any inventory itself. It later had to build warehouses to satisfy growing customer demand.
2) Amazon initially struggled with inventory management as it grew rapidly and held excess inventory. It then outsourced inventory to distributors and adopted a drop-shipment model to improve efficiency.
3) These changes allowed Amazon to reduce inventory costs, free up working capital, and increase fulfillment capacity. Its improved inventory management helped it become profitable by 2001.