nominal rate and effective rate
Nominal Rate:
The nominal rate, also known as the stated rate or the annual nominal rate, refers to the interest rate that is explicitly stated in a financial agreement or contract
Nominal Rate:
The nominal rate, also known as the stated rate or the annual nominal rate, refers to the interest rate that is explicitly stated in a financial agreement or contract. It does not take into account the impact of compounding or additional factors such as fees or charges. The nominal rate is typically expressed as an annual percentage rate (APR). For example, if a loan agreement states that the nominal rate is 5% per year, it means that the interest charged on the loan will be 5% of the original loan amount annually.
Effective Rate:
The effective rate, also known as the annual equivalent rate (AER) or the annual percentage yield (APY), represents the true cost or yield taking into account the impact of compounding. It considers the nominal rate as well as the frequency and timing of the compounding periods. The effective rate is the rate that would produce the same overall result when compounded as the nominal rate. In other words, it reflects the actual rate that will be earned or paid over a specific period.
The formula to calculate the effective rate is as follows:
Effective Rate = (1 + (Nominal Rate / n))^n – 1
where Nominal Rate is the annual nominal rate stated, and n is the number of compounding periods per year. By plugging in the values of these variables in the formula, one can calculate the effective rate. For example, if the nominal rate is 5% compounded semi-annually, the effective rate can be calculated as:
Effective Rate = (1 + (0.05 / 2))^2 -1 = 0.050625 or 5.06% (rounded to two decimal places)
The effective rate is important as it allows individuals or investors to compare different financial products or investment options accurately by considering the impact of compounding. It helps in making informed decisions about borrowing, saving, or investing by providing a more realistic representation of the actual return or cost.
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