1. Explain why lending institutions are required to disclose the APR rate.
2. Distinguish between quoted interest rate, interest rate per period, and effective annual interest rate.
1. Lending institutions are required to disclose APR because
Annual rate of interest is easier of customers , depositors and
lenders to understand as compared to effective rate and interest
rate per period.
2. Quoted interest rate is the APR or Annual interest rate . It
does not take compounding into consideration. APR means Annual
percentage rate which is quoted by banks and is the annual cost of
compounding interest. Even semi-annual compounding or monthly
compounding is stated in APR.
When number of compounding is higher interest rate per period is
calculated with quoted interest rate divided by number of
compounding periods. Interest rate per period =APR/n where n is
number of compounding
Effective annual interest rate is given by following formula
EAR=(1+APR/n)^n-1 or EAR =(1+interest rate per period )^n -1.
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