In terms of productivity - that is, how much a worker produces in an hour - there's little difference between the U.S., France, and Germany. But since more people work in America, and since they work so many more hours, Americans create more wealth.

To be sure, if you watch CNBC all day long you'll pick up some interesting news about particular companies and the economy as a whole. Unfortunately, to get to the useful information, you have to wade through reams of useless stuff, with little guidance on how to distinguish between the two.

The autocracies of the Arab world have been as economically destructive as they've been politically repressive.

In industries where a lot of competitors are selling the same product - mangoes, gasoline, DVD players - price is the easiest way to distinguish yourself. The hope is that if you cut prices enough you can increase your market share, and even your profits. But this works only if your competitors won't, or can't, follow suit.

As technology improves, on-screen avatars look more and more like real people. When they start looking too real, though, we pull away. These almost-humans aren't quite right; they look creepy, like zombies.

You might think of consumption as a fairly passive activity, but buying new products and services is actually pretty risky, at least if you value your time and money.

I tend to have a hard time working on pieces long before they're due. That's why I think the fact that I write a column is really good for me - the column has to be done, and there's no getting around it.