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Wednesday, July 09, 2014

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A F "Bob" Blair Jr

I sorta regret writing this for the umpteen time, that the
Truth In Lending Act of 1968 (TILA) uses the mathematically-UNTRUE, Nominal, simple-method of expressing an Annual Percentage Rate, which I acronym SIAPR). In 1974 I wrote to Robert Willard Johnson, author of a graduate financial text book, that I believed the Compound method was the correct method, CAPR. I have in my hand his letter in which he stated that I was right ... and he was instrumental in the select the method when they choose, and the Nominal (SIAPR) method was chosen because of the "cost of computing." What he meant was, at the time, interest rates were low and periods long, as one month, quarterly or semi-annual and ubiquitous calculators did not have compounding (CAPR). Now rates are astronomically high and periods are short (as 14 days on a payday loans and 7 days on bank overdrafts). In my state, Louisiana, on a payday loan for $100 for 14 days the periodic percentage is 20% plus a $10 fee. That fee is really interest. So on that loan the compound, CAPR is 93,368.65%, calculated (using Excel symbols: add +, subtract -, multiply *, divide /, compound ^, 100 to divide or multiply to change from or to a whole number). ((((20+10)/100)+1)^(365/14)-1)*100. On June 12 Richard Cordray was in New Orleans for a public hearing. In a Public Comments, I stated that current method was false. I guess it didn't stick.

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