A payment system is any system used to settle financial transactions through the transfer of monetary value. Common payment systems include operational networks that link bank accounts to enable monetary exchange using bank deposits. There are several types of pay schemes such as individual, profit sharing, and group based schemes. Performance pay can include merit pay, incentive pay, profit sharing, and performance bonuses. While pay systems aim to improve employee performance and retention, they can also lead to problems like reduced satisfaction and increased competition between employees if not implemented properly.