Now the Senate says that dividends should be tax-free to recipients. Suppose this measure goes through and the directors of Berkshire Hathaway (which does not now pay a dividend) therefore decide to pay $1 billion in dividends next year. Owning 31 percent of Berkshire, I would receive $310 million in additional income, owe not another dime in federal tax, and see my tax rate plunge to 3 percent.

The Senate's plan invites corporations -- indeed, virtually commands them -- to contort their behavior in a major way. Were the plan to be enacted, shareholders would logically respond by asking the corporations they own to pay no more dividends in 2003, when they would be partially taxed, but instead to pay the skipped amounts in 2004, when they'd be tax-free. Similarly, in 2006, the last year of the plan, companies should pay double their normal dividend and then avoid dividends altogether in 2007.

Proponents of cutting tax rates on dividends argue that the move will stimulate the economy. A large amount of stimulus, of course, should already be on the way from the huge and growing deficit the government is now running. I have no strong views on whether more action on this front is warranted. But if it is, don't cut the taxes of people with huge portfolios of stocks held directly. (Small investors owning stock held through 401(k)s are already tax- favored.) Instead, give reductions to those who both need and will spend the money gained. Enact a Social Security tax "holiday" or give a flat-sum rebate to people with low incomes. Putting $1,000 in the pockets of 310,000 families with urgent needs is going to provide far more stimulus to the economy than putting the same $310 million in my pockets.