This model illustrates how disruptions at suppliers, such as weather, strikes, or others, can affect a supply chain, and how such disruptions can be mitigated. The model has two suppliers and two manufacturers. Normally, each supplier supplies a single manufacturer. However, there are occasional disruptions at the suppliers, and each disruption can last a random number of weeks. If an order is placed during a disruption period, this order is ignored by the supplier, resulting in an increased chance of stockouts at the manufacturer. The model explores the mitigation strategy where the manufacturers can "share" suppliers.