Tuesday, June 9, 2015

Fixing my yield curve math

I put up a graph of the second derivative of the yield curve under the assumption that the two period model holds, and I had error. This version seems better, I adjust the term period rates, they have to be expressed in the period of the loan, not year over year. So I still adjust this idea. The short term is on the right, long term to the left; a tanh X axis. The peak is at the ten year spot, which is correct, that is the knee of the real curve, so that is the spot with the most second derivative.

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