The market for short term security is called the money market. It is a platform where financial instruments such as Treasury bills, commercial papers, and certificates of deposits are traded. The money market enables lenders to provide short term funds to borrowers who require them for a brief period, typically less than a year. The interest rates in the money market are determined by the demand and supply of money. It is an important aspect of the financial market as it helps to regulate the supply of money in the economy.