How did government seek to guarantee profits for businesses engaged in war production?

During times of war, governments often implemented measures such as cost-plus contracts, which guaranteed that businesses would be reimbursed for their production costs plus a fixed profit margin. They also provided subsidies, tax incentives, and favorable loan terms to encourage private investment in war production. Additionally, governments sometimes established price controls to stabilize costs and ensure that firms could maintain profitability while meeting demand for military supplies. These strategies aimed to boost production efficiency and secure a steady supply of necessary materials for the war effort.