There are interest rates that banks set to determine the key interest rate for different types of lending. Their size depends on the supply and demand for credit resources, market interest rates and other factors. Initially, the base interest rate is set by the central bank of the country; at this rate, all other banks can borrow from the central bank. The base interest rate set by the central bank has a direct impact on the value of said country’s currency. Therefore, tracking changes in this indicator can help the trader in making trades in forex.