Video narration
Imagine a supermarket selling bottled water. One week, customers buy just a little more than usual. The store manager sees the bump and worries about running out, so instead of ordering a little extra, they order 20% more from the distributor. The distributor gets similar “just in case” increases from several stores, assumes demand is surging, and orders 40% more from the warehouse. The warehouse sees that bigger spike, panics about shortages, and tells the factory to double production. But here’s the twist: actual customer demand only rose slightly. Each step added a safety cushion, and the signal got louder as it moved upstream. That amplification is the bullwhip effect: a small change in customer demand becomes a much larger disruption back through the supply chain. The result is excess inventory piling up in trucks, warehouses, and stores, followed by slowdowns later. To reduce it, share real demand data, communicate directly, and order in smaller, steadier batches.