1st Rule of Economics: TANSTAAFL1st Rule of Politics: Ignore the first rule of economics.
Economics, as a branch of the more general theory of human action, deals with all human action, i.e., with mans purposive aiming at the attainment of ends chosen, whatever these ends may be.--Ludwig von Mises

Oil's climb to $122 a barrel has policy makers and presidential candidates scrambling for quick, feel-good solutions. Trouble is, their ideas are exactly the opposite of what straightforward market economics says is needed.
John McCain and Hillary Clinton want to send cash-strapped consumers on holidays from the federal gasoline tax. But the law they can't rewrite -- the law of supply and demand -- suggests it would backfire. Lower taxes would encourage people to drive more, meaning more demand that would push prices higher again. That would fatten the bottom line of Big Oil and suppliers like Venezuela's Hugo Chávez and add to global carbon emissions.
What the U.S. really needs, if it seeks a real fix to its energy-consumption problem, is less demand, not more. Mr. Market says there's a simple way to do that: Jack up the gas tax. Don't lower it.
Economists call it a "Pigovian Tax," in honor of English economist Arthur Pigou, who early in the 20th century examined economic activity that hurts innocent bystanders. To stop behavior that's not in the public good, you tax it more, not less.
Of course, a higher gas tax would hurt working-class Americans who rely on their cars, though other taxes, like the federal payroll taxes or state sales taxes on food, could be lowered to offset it.
Harvard economist Gregory Mankiw, President Bush's former chief economic adviser, has proposed raising the tax by 10 cents a year for 10 years, to give the economy time to adjust.
Are Voters Stupid Enough to Sell Their Votes for Just $27 and Change?
Clinton's idea, which is also endorsed by Republican presidential hopeful Sen. John McCain (R-Ariz.), is to suspend the 18.4 cents per gallon federal gas tax for three months in order to give cash-strapped motorists relief at the pump. Assuming that dropping the tax would actually lower the price per gallon by the full 18.4 cents, how much would this actually save the average family?
Let's make a rough calculation, using an average commute of 20 miles per day in an automobile with a 15 gallon tank getting the corporate average fuel economy (CAFE) mileage of 27.5. A commuter would then fill up every 20 days. There are 98 days between Memorial Day and Labor Day, so that means five fill-ups over the summer. Five 15 gallon fill-ups at 18.4 cents per gallon less would mean that motorists would save a total of $13.80 for the summer. Let's double that for vacation driving and shopping and that comes to a grand total of $27.60 in savings. About enough to buy five Big Mac Combos.
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