A Wikipedia buddy of mine recently shared an article he started,
Flat rate (finance).
Flat interest rate loans are often used by traditional moneylenders in the informal economy of developing countries. They are also used by many microfinance institutions. One reason for their popularity is their ease of use. For example, a loan of $1,200 can be structured with 12 monthly repayments of $100, plus interest, due on the same dates, of 1% ($12) a month, resulting in a total monthly payment of $112. In the example to the right, the loan contract is for 400,000 Cambodian riels over 4 months. Interest is set at 16,000 riels (4%) a month while principal is due in a single payment at the end.
Flat rate calculations, which are based on the amount of money the borrower receives at the beginning of the loan rather the average amount the borrow has access to during the loan, have been outlawed in developed countries (see for example the Truth in Lending Act). However, they persist in many developing countries, and have frequently been adopted by microcredit institutions.
They are also sometimes used by on-line microlending operators.
For example, kiva.org quotes interest rates as the "self reported average, annualized, flat interest rate in real terms charged by the Field Partner to the enterpreneur."[1] For a variety of reasons (see below), flat rates can be useful in lending to poor people, and often disappear very slowly as financial systems develop.
This article goes on to discuss flat rate calculations, how they under-represent the annualized effective APR, benefits and problems with flat rate microfinance lending practices and some related consumer protection issues.
In terms of
transparent Kiva Loan (Re)Payment Schedules and Reporting, this article reminds me of the notion that each Kiva Entrepreneur profile should contain a complete
amortization schedule that includes for each periodic payment (made by the entrepreneur), the amount of principal, interest and fees due. Only from this complete information can a truly comparable APR be determined from the typically represented Kiva flat rate loan.