When does the Laffer Curve kick in, if at all?

Doesn’t movement along the curve to avoid taxes only happen at the extremes? I always thought that the argument for more tax revenue after a tax cut was greater economic activity, not that people would stop cheating on their taxes. I’m not saying I buy, it but you have to give them their due.

At least one does. And I’d be willing to bet, probably two or three.