"My contention is, and has been, that the optimal FairTax rate will not collect enough revenue"
And your contention - as definitively shown by the lead-in paper - is incorrect.
In fact the FairTax will probably generate too much revenue, if anything, should the rate is left at 23%.
the lead in paper is a crock, and doesn't "show" anything, it is pure fiction. It is made up and isn't based on any real world behavior. It cannot show anything "definitively". The FairTax will not be able to generate the required revenue without getting rid of cash transactions, and employing armies of compliance officers with real teeth.