CONCEPT
The Beer Game
Forrester's simulation—executives managing a simple distribution chain produce wild oscillation—demonstrating that structure, not intelligence, drives behavior.
The Beer Game is a supply chain simulation developed by Jay Forrester at MIT in the 1960s and refined by Peter Senge into one of management education's most powerful teaching tools. Four players—retailer, wholesaler, distributor, brewery—manage inventory in response to customer orders, seeing only their own position in the chain. Despite the system's simplicity (customer demand rises modestly from four to eight cases and then remains constant), players invariably produce massive inventory oscillations, order cancellations, and mutual blame—the bullwhip effect emerging from structure rather than incompetence. Each player makes locally rational decisions; the aggregate produces systemic irrationality. The game demonstrates systems thinking's core lesson: intelligent people in dysfunctional structures produce dysfunctional outcomes, and only changing the structure—improving information visibility, reducing delays, enabling coordination—changes the result. In the AI age, the Beer Game's dynamics map precisely onto adoption cascades, market repricing, and the competitive pressures driving organizational AI decisions.
In The You On AI Field Guide
The game's power lies in its experiential nature. Players do not observe the bullwhip effect—they produce it. The shock of revelation when