The Laffer Curve and Tax Policy

Bad Thinking Habit #2:
All or Nothing Thinking

Tax policy is perhaps the most important issue in the coming Presidential election: whether to keep the Bush tax cuts, let them expire, or modify them.  If no action is taken, the tax rates on capital gains and dividends will rise automatically at the end of 2008 while the others will go up at the end of 2010.  Mr. McCain and most Republicans wish to keep the lower rates, and perhaps lower some others.  Mr. Obama and most Democrats apparently wish to allow the reduced rates to expire, especially those on higher income levels.

When the latest tax cuts were enacted in 2003, their sponsors never intended them to be temporary.  A sunset provision was needed to keep the scoring within certain legal limits, but everyone understood that the intention was to renew them.  To allow the cuts to expire is a tax increase, and its merits should be judged on that basis.

Although not often mentioned, the Laffer Curve, which shows the relationship between tax rates and tax revenue, is central to the tax debate.  Republican "supply siders" are the chief advocates of keeping the low rates where they are and possibly lowering other taxes as well.  Supply siders generally believe the Laffer Curve proposition that lower tax rates generate higher tax revenue; so to raise tax rates, or let them rise automatically, would not only hurt taxpayers, but would also, by depressing the economy, actually reduce the tax revenue raised by the government.  This would be especially true of the tax on capital gains and dividends where tax payers have some control over their realization.

The other side of the tax debate believes that the supply-side position is nonsense in general and that its intellectual core, the Laffer Curve, in particular, is a proven failure.  George Bush, the father, once famously labeled the supply side position, "Voodoo Economics."

There appears to be no middle ground in this debate because each side is engaged in "all or nothing thinking."  Laffer Curve predictions either work as advertised, or they don't.  Higher tax rates either lower tax revenue or raise tax revenue.  Each side thinks the other side just doesn't get it.

This great divide might not be so great if more people actually had a look at a Laffer curve such as the one below.  Although it's not clear how steep the slope of the curve should be, it is still rather obvious that whether tax collections rise or fall depends on where we are on the curve.  The higher the existing tax rate, the less revenue is likely to be generated by even higher rates.  At some point, the peak, higher rates will start producing lower revenue.

In a world of all or nothing thinking, it is unfortunate that the Laffer Curve was originally over-hyped.  It was advertised as allowing tax rate cuts to "pay for themselves."  That didn't happen completely, to a large extent because of higher government spending, especially on the military, so the budget deficit grew.  As a result, the critics declared the Laffer Curve a failure.

In a more rational world, the fact that it happened largely, if not completely, would be classified as a success, or, at least, a partial success.  All or nothing standards rarely produce successes of any sort.

Instead of arguing whether tax cuts work (pay for themselves) or not, the question should be to what degree they pay for themselves. How much disincentive is there in the present tax structure, and how can it be reduced?  Surely, even the tax increasers don't have maximum tax revenue as their goal.

All-or-nothing thinking is responsible for other needless irrationalities in the tax debate.  For example, one side says "the rich" are the main beneficiaries of the Bush tax cuts without acknowledging that those same rich still pay most of the taxes collected.  And they never acknowledge that many on the lower end of the income scale pay no income tax at all and that number was increased by the Bush tax cuts.  The Orwellian language used in these debates rose to a new level when the government giveaways in the recent stimulus were called "rebates."  Rebates of what?

Taxes are only one area where all or nothing thinking makes debate and rational policymaking more difficult:

In energy policy, it's said there is no policy because prices have risen, or because we are importing more oil, or because oil companies make too much profit or their executives are paid too much.  There is either the preferred outcome in all respects, or there is no policy.

All or nothing thinking bedevils monetary policy as well.  In the recent credit crunch, at first the Fed just didn't get it.  It should be reducing rates for heavens' sake.  Then, when rates were reduced, the Fed was pushing on a string, and ineffective.  When inflation rose, predictably, why did the Fed let that happen?  They pushed rates too low; now look what's happened to the dollar as a result.  Nowhere in the dialog can you find discussion of trade-offs, balancing objectives, or substantial successes.  Monetary policy either works, or it doesn't.  Apparently it doesn't.  Neither, in the view of the all-or-nothing crowd, does anything else.

4 Responses to “The Laffer Curve and Tax Policy”

  1. T-Bone Says:

    Regarding the Laffer curve… It seems the effect is dependent on incentive/disincentive of taxes. But I’m not sure why it is assumed that higher taxes are simply considered a disincentive. As you earn more take-home money, it has a diminishing value. This thinking seems to violate one of your other bad thinking habits, failure to account for diminishing marginal utility.

    If you were to lower taxes on someone working 2 or 3 jobs, you’d likely see their first reaction to more money be to work less. Their incentive to work that much in the first place was necessity. Someone earning much more has more freedom to choose different options. For those with high compensation, that income seems to cause those people to work more hours for all that additional disposable income. I think higher tax would be more likely to lower their hours than to cause them to work more, as the laffer curve suggests.

    As for capital gains and dividend being the most influenced by tax rates, I don’t get that reasoning. Sure people can control when they recognize gains. But that seems to be a matter of just waiting for the tax rate to change to realize income. Cash out right before the tax rate raises, or after it drops. But I don’t see a reason why the amount that is subject to tax should change overall. It’s just a matter of when. The income is passive, so there’s no trade-off. Only by not investing do you lose. You’re not making a trade off between labor hours for more income versus more leisure time.

  2. Ken Houghton Says:

    “In a more rational world, the fact that it happened largely, if not completely, would be classified as a success, or, at least, a partial success.”

    In a more rational world, a 24-26% replenishment rate would not be described by a former Fed Governor as “largely.”

  3. Kimo Says:

    “A sunset provision was needed to keep the scoring within certain legal limits, but everyone understood that the intention was to renew them.” This was not my understanding, but perhaps you would argue that I’m a nobody.

    “same rich still pay most of the taxes collected”. Mr Buffet disagrees with this statement. Its a waste of my time to continue.

  4. CathyG Says:

    Angry Bear points out:

    “Thomas Friedman accidentally telling the truth:

    Since President Bush came to office, our national savings have gone from 6 percent of gross domestic product to 1 percent, and consumer debt has climbed from $8 trillion to $14 trillion.”

    How can anybody who cares about empirical evidence and fact see this debacle as anything other than an utter condemnation of the policies that engendered it?

    The polices have failed, the administration pushing these policies like crack for the rich has failed, the economists, academicians, think tankers and legislatures who acted like demented cheer-leaders in favor of these policies have failed.

    And it is the American middle class and, ultimately, the American system as a whole, that will pay the full price for these failures.

    Try talking about “matters of degree” to families losing their homes, workers losing their jobs, communities devastated by an epidemic of vacant/abandoned homes and the accompanying imploding tax bases and exploding crime rates, retirees losing their savings to inflation, not to mention all the current and future generations who will have to make real, long lasting sacrifices in standard of living to pay for the debt our glorious leaders have piled up.

    Maybe they’ll be impressed with your theory. I am not.

    You have no idea how the fury and sense of betrayal is building out here.

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