Squeezing the Rich Is a Poor Way to Spur Growth: Caroline Baum

Thirty-six years after an academic economist named Arthur Laffer drew a curved line on a cocktail napkin, the debate over supply-side tax cuts paying for themselves is still going strong.

Why, after all this time and an extensive body of data, are we still questioning whether reductions in marginal and capital- gains tax rates increase economic activity enough to generate more revenue for the federal government?