LIBOR and FED Prime.
Prime Rate: - The Wall Street Journal Prime Rate (WSJ Prime Rate) is defined by The Wall Street Journal (WSJ) as the base rate on corporate loans posted by at least 70% of the 10 largest U.S. banks. It is not the 'best' rate offered by banks. It should not be confused with the federal funds rate set by the Federal Reserve, though these two rates often move in tandem.
LIBOR:- The London Interbank Offered Rate (or LIBOR) is a daily reference rate based on the interest rates at which banks borrow unsecured funds from other banks in the London wholesale money market (or interbank market). LIBOR is calculated by Thomson Reuters and published by the British Bankers' Association (BBA) after 11:00 am (and generally around 11:45 am) each day (London time). It is a trimmed average of inter-bank deposit rates offered by designated contributor banks, for maturities ranging from overnight to one year. LIBOR is calculated for 10 currencies. There are either eight, twelve or sixteen contributor banks on each currency panel and the reported interest is the mean of the middle value. (Source: Wall Street Journal, Wikipedia).