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The effective interest rate ( EIR ), effective annual interest rate, annual equivalent rate ( AER) or simply effective rate is the percentage of interest on a loan or financial product if compound interest accumulates in periods different than a year. [1] It is the compound interest payable annually in arrears, based on the nominal interest rate.
The term annual percentage rate of charge ( APR ), [1] [2] corresponding sometimes to a nominal APR and sometimes to an effective APR ( EAPR ), [3] is the interest rate for a whole year (annualized), rather than just a monthly fee/rate, as applied on a loan, mortgage loan, credit card, [4] etc. It is a finance charge expressed as an annual rate.
is the annual effective interest rate, which is the "true" rate of interest over a year. Thus if the annual interest rate is 12% then =. (pronounced "i upper m") is the nominal interest rate convertible times a year, and is numerically equal to times the effective rate of interest over one th of a year.
The nominal interest rate, also known as an annual percentage rate or APR, is the periodic interest rate multiplied by the number of periods per year. For example, a nominal annual interest rate of 12% based on monthly compounding means a 1% interest rate per month (compounded). [2] A nominal interest rate for compounding periods less than a ...
The federal funds rate is an important benchmark in financial markets and central to the conduct of monetary policy in the United States as it influences a wide range of market interest rates. The effective federal funds rate (EFFR) is calculated as the effective median interest rate of overnight federal funds transactions during the previous ...
The annual interest rate is the rate over a period of one year. Other interest rates apply over different periods, such as a month or a day, but they are usually annualized . The interest rate has been characterized as "an index of the preference . . . for a dollar of present [income] over a dollar of future income."
The force of interest is less than the annual effective interest rate, but more than the annual effective discount rate. It is the reciprocal of the e -folding time. A way of modeling the force of inflation is with Stoodley's formula: δ t = p + s 1 + r s e s t {\displaystyle \delta _{t}=p+{s \over {1+rse^{st}}}} where p , r and s are estimated.
Future value. Future value is the value of an asset at a specific date. [1] It measures the nominal future sum of money that a given sum of money is "worth" at a specified time in the future assuming a certain interest rate, or more generally, rate of return; it is the present value multiplied by the accumulation function. [2]