The Procurement Glossary » Bullwhip Effect
Bullwhip Effect
Inventory & Logistics
Definition
The amplification of demand variability as it travels up the supply chain, causing swings in orders and stock.
Explanation
Small changes in end demand get magnified at each upstream tier as everyone over-reacts and buffers, producing feast-and-famine ordering. Sharing real demand data (e.g. via CPFR) is the main way to dampen it.
Example
A minor retail uptick balloons into huge factory orders upstream — the bullwhip effect in action.
Related terms
- Demand Forecasting — Predicting future demand for goods to guide purchasing, inventory and production planning.
- Collaborative Planning, Forecasting & Replenishment (CPFR) — A practice where buyer and supplier share forecasts and plans to synchronise supply with demand.
- Safety Stock — Extra inventory held as a buffer against variability in demand or supply, to reduce the risk of stockouts.
- Supply Chain — The end-to-end network of organisations, people, activities and resources that move a product from raw material to end customer.
Frequently Asked Questions
What is Bullwhip Effect?
The amplification of demand variability as it travels up the supply chain, causing swings in orders and stock. Small changes in end demand get magnified at each upstream tier as everyone over-reacts and buffers, producing feast-and-famine ordering. Sharing real demand data (e.g. via CPFR) is the main way to dampen it.
Can you give an example of Bullwhip Effect?
A minor retail uptick balloons into huge factory orders upstream — the bullwhip effect in action.
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