With all the hooha about bank execs’ compensation being capped, I found this instructive (4-page .pdf file):

U.S. taxpayers subsidize excessive executive compensation ? by more than $20 billion per year ? via a variety of tax and accounting loopholes. For example, there are no meaningful limits on how much companies can deduct from their taxes for the expense of executive compensation. The more they pay their CEO, the more they can deduct. A proposed reform to cap tax deductibility at no more than 25 times the pay of the lowest-paid worker could generate more than $5 billion in extra federal revenues per year.

That’s from the Institute for Policy Studies. Here’s their detailed report (27-page .pdf file); the above is an Executive Summary.