randy kroszner with the university of chicago's booth school of business. ty, down to you. >> sue, shortly after the fed announcement, some of the nation's biggest banks said they were going to increase their prime rate. the prime rate is the interest rate used to price lots of consumer products like auto loans, credit cards, home equity lines. so, if a bank raises its prime rate, it means your credit card rate will also rise. citi, jpmorgan, pnc, u.s. bank and wells fargo all raised their prime rates to 3.5%, but wells fargo also said it won't raise its rates on deposits. >> which, ty, brings us to our next segment, staffing cash in a savings account has yielded nearly nothing for years, aside, perhaps, from peace of mind, and that's not likely to change very much. our senior finance correspondent, sharon epperson, explains the real impact the fed decision may have on your finances. let's start with savings accounts. wells fargo says, you know, it's not going to increase the rate on your savings deposit. why? why is that not automatically -- >> it's not ti