"IF YOU SAY SOMETHING long enough and loud enough, there's every chance people will come to believe it's true, especially if your opponents tire of rebuttals. This time-honored political strategy has been working overtime of late, as Republican presidential hopefuls romance the richer Florida retirees with appeals for cuts in corporate taxes.

You may have heard: U.S. corporations face one of the highest income tax rates in the world, though the mention of "rate" is often enough excised, so that what comes through is the assertion that corporations pay too much in taxes. This is simply untrue if your basis for comparison is the developed world. The truth is that while the 35% corporate income tax rate is high indeed, the creativity and global reach of U.S. corporations make them among the most lightly levied.