Variable rate

Many credit card issuers give a rate that is based upon an economic indicator published by a respected journal. For example, most banks in the U.S. offer credit cards based upon the lowest U.S. Prime Rate as published in the Wall Street Journal on the previous business day to the start of the calendar month. For example, a rate given as 9.99% plus the prime rate will be 16.99% when the prime rate is 7.00% (such as the end of 2005). These rates usually also have contractual minimums and maximums to protect the consumer (or the bank, as it may be) from wild fluctuations of the prime rate. While these accounts are harder to budget for, they can theoretically be a little less expensive since the bank does not have to accept the risk of fluctuation of the market (since the prime rate follows inflation rates, which affect the profitability of loans). A fixed rate can be better for consumers who have fixed incomes or need control over their payments budgets