Risk Pooling: Safety Stock & the Square Root Law

A live 3D warehouse simulator that puts the central trade-off of supply-chain network design under your control: should each region hold its own inventory buffer, or should everyone draw from one consolidated distribution center? Each period, every site draws a random demand from a Normal distribution, silo stock levels rise and fall in real time, and a base-stock replenishment policy tops each one back up to a target that includes a safety-stock buffer sized from your chosen service level. Toggling to Pooled mode merges the independent demand streams into a single buffer and applies the square-root-law formula, so you can watch the total safety stock — and the stockout rate — respond exactly as queueing and inventory theory predict.