I used the so-called Laffer Curve all the time in my classes and with anyone else who would listen to me to illustrate the trade-off between tax rates and tax revenues.

Because tax cuts create an incentive to increase output, employment, and production, they also help balance the budget by reducing means-tested government expenditures. A faster-growing economy means lower unemployment and higher incomes, resulting in reduced unemployment benefits and other social welfare programs.

The Laffer Curve, by the way, was not invented by me.

Arthur Laffer Quotes