Supply side economics invokes the most basic element of human nature: self-interest. We all seek to improve our material circumstances. The tinier the tax man’s bite, the greater is our incentive to produce. As tax burdens lighten, motivation heightens, sparking a robust economy. Allowing producers to enjoy their hard earned gains is both just and effective. Contrasted with demand side economics it’s a no-brainer. It is neither just nor effective to funnel public money to political favorites hoping they will spend lavishly and thus stimulate production. Paying people not to produce inspires little effort. Depriving producers of needed capital so...