The document provides an overview of the money market. It defines the money market as the market for short-term, highly liquid debt instruments with maturities of one year or less, such as treasury bills, commercial paper, and certificates of deposit. These instruments are traded by phone between financial institutions, corporations, brokers, and dealers. The money market helps facilitate short-term borrowing and lending for participants. It consists of various sub-markets that collectively make up this important segment of the financial system.