Perks: One of the biggest perks you'll find with TIAA Bank is its "Yield Pledge," which maintains that its yield pledge money market account rate will always be competitive and in the top 5 percent. Its money market account also has no monthly fee, allows for mobile check deposits and is IRA-eligible. As long as you keep at least $5,000 in your yield pledge money market account, TIAA Bank will reimburse all ATM fees charged by other banks. Regardless of your balance, you’ll be reimbursed up to $15 for ATM fees incurred by using non-TIAA Bank ATMs. The Money Market enables the commercial banks to use their excess reserves in profitable investment. The main objective of the commercial banks is to earn income from its reserves as well as maintain liquidity to meet the uncertain cash demand of the depositors. In the money market, the excess reserves of the commercial banks are invested in near-money assets (e.g., short-term bills of exchange), which are easily converted into cash. Thus, commercial banks earn profits without sacrificing liquidity.