The Federal Reserve provided a lot of money during the 2007-09 financial crisis to help stabilize the economy. Some people think that rules about how much money banks need to have on hand could prevent the need for this kind of help in the future. Others believe that the problem was caused by issues in the market that the Federal Reserve can fix by giving out money. The truth is, both rules about money and the Federal Reserve's help are important. Sometimes, banks just need more money to keep things running smoothly. Other times, banks are in trouble and need to figure things out on their own. Having rules about money helps make sure that the right help is given at the right time.