Bullwhip / Beer Game

SD · 28

Four supply tiers each order to cover demand plus inventory gap. Customer demand steps from 4→8 at week 5. Watch upstream amplification.

Order delay (weeks) 2

Adjustment time α 0.30

Target inventory 12

week0

customer demand—

retailer order—

wholesaler order—

distributor order—

factory order—

custretailwholedistfact