When Liebowitz got the IAQF award he asked about declining growth.
I tried sigmod models but they didn't integrate nicely, hyperbolic did. Declining Growth: "Integrate[Exp[(g/t-r)t],{t,0,Infinity}]" -> Exp(g)/r
Gordon: "Integrate[Exp[(g-r)t],{t,0,Infinity}]" -> 1/(r-g)
- = -
Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist
http://www.panix.com/~vjp2/vasos.htm
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