It is related to the broken window fallacy. The Keynesian claim is that a stimulus can work because of the ‘fiscal multiplier’. For example, the government gives someone a thousand bucks. That person spends it and gets something in return. But now the thousand bucks is in someone else hands, and they spend it, and so on.
Keynesian economists think they know what the fiscal multiplier is - 1.4, 1.5, 1.6, whatever. They think that if the government puts a trillion dollars into the economy, it’ll create 1.6 trillion dollars in economic activity.
Where the broken window fallacy comes in is in the unstated assumption that government is just as good at allocating that trillion dollars as is the private sector, and therefore there will be no economic loss from borrowing the trillion in the first place. This is, frankly, a load of crap. The government’s manipulation of the economy will distort prices, divert investment, crowd out private capital, and do other bad things.
It should be evidently clear that the government’s spending is not economically optimal, simply given the fact that the ‘stimulus’ package has already radically altered shape several times. ALL of them can’t be economically efficient.
In this last go-round, for example, Nancy Pelosi has injected a huge amount of money for family planning services. When questioned how funding family planning could possibly be seen as a stimulus, her response was, “if we don’t have children, it will save the government money in education and child health care.” This may be the most asinine statement a politician has made this year, and this year has seen a bumper crop of asinine statements from politicians.
The notion that there is a fixed ‘multiplier’ that applies to any spending level is also ridiculous. If that were the case, we might as well borrow and spend 100 trillion and make ourselves fabulously wealthy. It’s economic sleight of hand on the order of the Laffer Curve - an economic principle that is real, but limited in scope and applicability, but glommed onto by politicians to justify whatever it is they want to do.
So yes, there’s a broken window fallacy at play here, because the government spending will not be as efficient as private spending, yet they are treating it as if it will be. It’s also not going to be much of a stimulus, because the money isn’t going to get into anyone’s hands in any sizeable amount until 2010 or even 2011. Notice how three months ago the politicians were saying speed was of the essence, and how the timing was so critical that a bill had to be on Obama’s desk the day he took office. Well, now they’re saying “Hey, a couple of years isn’t so bad.” You can’t have it both ways.
This stimulus package has turned into nothing more than an excuse for big-spending politicians to finally spend money on the things they’ve wanted to spend money on for decades but couldn’t find the political capital to do so. Now they’ve got it, and by God they’re going to use it.
One final thought - given that this is a ‘balance sheet’ recession like Japan’s, what happens to that fiscal multiplier if the money gets spent, and the people who get it simply save it? That’s what happened in Japan, and that’s what happened to a large part of the first half of the TARP money.
This is a fiscal disaster in the making. And it comes at exactly the wrong time - Social Security and Medicare are soon going to be going from net contributors to the federal budget to being a net drain on the federal budget. And it’s going to get worse, and worse. And the U.S. is going to enter that dangerous period with deficits already in the trillions of dollars. This can not end well.