“Kurt Hauser is a San Francisco investment economist who, 15 years ago, published fresh and eye-opening data about the federal tax system. His findings imply that there are draconian constraints on the ability of tax-rate increases to generate fresh revenues. I think his discovery deserves to be called Hauser’s Law, because it is as central to the economics of taxation as Boyle’s Law is to the physics of gases. Yet economists and policy makers are barely aware of it. . . .
[Hauser writes:] ‘No matter what the tax rates have been, in postwar America tax revenues have remained at about 19.5% of GDP.'”
“As Mr. Hauser said: ‘Raising taxes encourages taxpayers to shift, hide and underreport income. . . . Higher taxes reduce the incentives to work, produce, invest and save, thereby dampening overall economic activity and job creation.’
Putting it a different way, capital migrates away from regimes in which it is treated harshly, and toward regimes in which it is free to be invested profitably and safely. In this regard, the capital controlled by our richest citizens is especially tax-intolerant.” (Read more from online.wsj.com)