And if torie were so well educated in Econ, she may remember Econ 101 (MY prof was Les Aspin...)
In 101, you learn that there is a pair of curves describing increasing price and decreasing sales. The idea, of course, is to maximize sales. Thus you pick the point on the curve which represents the maximum volume as the sales price--and figure out how to make your profit at that price.
Only difference with Gummint is that Gummint has no interest in economic niceties--only in self-perpetuation.
In THAT sense, the Laffer curve is a myth. Nobody in Gummint takes seriously the idea that 'less cost' is important.