The problem with the Keynesians is that they get so focused on the mechanisms of money and the attempts to tinker with the distribution of money to move the economy that they lose sight of what an economy actually is. They could learn a little from the Austrians in this regard. The Austrians have always understood that at its core, the economy is about real people making things other people want or need. It’s about information transfer between producers and consumers, about connecting buyers and sellers together, and about efficient management of production and resources.
Yes, the money supply can break down and break the economy. That nearly happened in the financial crisis last year. But in the end, the fastest way to economic growth is to create conditions which restore the ability of people to cooperate with each other and make things the other person wants and needs.
When Washington rains money down on the economy, it does damage. It may cause a short-term stimulus (no one really denies that shoveling wheelbarrows of money out a helicopter door onto the population won’t cause a temporary increase in spending). But it has pernicious side effects. It destroys information. Producers can no longer tell what consumers want in the long run, because that information is masked by short-term stimulus. Resources are diverted away from efficient used and applied to inefficient uses dictated by politicians. Jobs that are no longer cost-effective are maintained, tying up resources that could be going to more efficient work. Companies that should fail and clear the way for new companies instead stick around and soak up the economic oxygen in the room.
In the end, you trade off a sharper, shorter recession which has the effect of clearing away a lot of dead wood in the economy for a gentler, longer recession that eventually leaves your economy less productive and less efficient.
Any attempt to stimulate the economy has to take these negative secondary effects into account. It needs to be done carefully and intelligently, with an aim to causing the least amount of economic distortion possible. As Larry Summers himself said, an effective stimulus has to be ‘timely, targeted, and TEMPORARY’. Give the economy a little shot in the arm where it needs it most, then get the hell out of the way and let it heal itself.
The stimulus as devised by the government is none of those things. It’s not fast - for political reasons, much of the spending was aimed at areas that simply could not spend it quickly. It wasn’t targeted - the stimulus money went more to Democratic constituencies than it did to the areas most in need. And it’s turning out to be not so temporary, either. Much of the stimulus money has gone into swelling the ranks of public servants and building new public buildings like schools - which will either fall into disrepair and disuse, or be a permanent drag on the economy. And of course, Washington is now talking about Stimulus Mk. II, setting up the expectation of a Japanese-style permanent series of stimuluses.
Whatever merits the abstract concept of a Keynesian stimulus might have, the Federal Government implemented it in about the worst way possible. Why would you expect them to do better next time?