The fact that many private expenditures are mutually offsetting actually happens to constitute a remarkably good bit of fiscal news. Mutually offsetting spending patterns are wasteful in the same way that military arms races are. In such situations, if each party spends less, nothing is sacrificed, yet resources are freed up that can be put to much better uses.

Many social critics wag their fingers at what they perceive to be frivolous luxury spending. But that misses the point that consumption norms are local. It's not just the rich who spend more when they get more money. Everyone else does, too. The mansions of the rich may seem over the top to people in the middle, but the same could be said of middle-class houses as seen by most of the planet's seven billion people.

If government is inevitable, the challenge is to come up with the most effective one possible.

Only the federal government has the power to spend beyond its current revenue. It shouldn't do that when the economy is at full employment. But it's an essential step for an economy mired in recession.

One reason that might motivate a worker to accept a riskier job at higher pay, for example, would be that doing so would enable him to bid more effectively for a house in a better school district. But if other workers did likewise, none would achieve the goal they were striving for.

Pass down values every day through your actions, your words and your time with your kids.

The primary source of waste in government is that legislators are often under heavy pressure to vote for projects that will benefit their campaign contributors, even when those projects fail a simple cost-benefit test. But with the Supreme Court showing little interest in permitting tighter rules on campaign contributions in recent years, there is little reason to be optimistic that we'll start curbing this kind of waste any time soon.