Federal procurement contracts are commonly divided into two main types--fixed-price and cost-reimbursement--that primarily differ as to whether the government or the contractor assumes the risk of increases in performance costs (e.g., wages, materials). With a fixed-price contract, the contractor assumes this risk because it agrees to provide goods or services to the government for a certain price established at the time of contracting. If the performance costs exceed this price, the contractor generally cannot, absent a price adjustment clause, recover more money from the government.