Guyton Klinger Portfolio Management Rule Ignored

[gasserma]

Hi,

I believe there is a piece missing from the Guyton Klinger simulations. I don't know if this is related, but in the legacy cFIREsim it was labeled "Guyton-Klinger Method (simplified)". I suspect that the current cFIREsim is still using a simplified version.

So... I think this may be two issues really.

1. Can we put a "simplified" tag on the Guyton-Klinger calculation on the current version? Maybe with help text explaining what is actually missing.
2. Can we implement the actual GK calculation? The piece I believe is missing is what is called the Portfolio Management Rule original paper or simpler which states that you move portfolio growth (in years that it happens) into cash every year, and you fund future withdrawals from that.

I would be happy to work on (2). I don't know how quickly it will happen, particularly since I think the reason it hasn't happened yet is that the code isn't factored to accommodate this kind of thing.

Regards,
M