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

When Americans think of college these days, the first word that often comes to mind is 'debt.' And from 'debt' it's just a short hop to other unpleasant words, like 'payola,' 'kickback,' and 'bribery.'

A consumer-finance agency is a good thing, but it would do well to teach consumers a simple lesson: if you don't understand the deal you're making, don't make it.

When all is said and done, cheap gas is an illusion, because our reliance on gas creates a whole series of costs that aren't factored in to the pump price - among them congestion, pollution, and increased risk of accidents.

In the days when corporate downsizing was all the rage, Wall Street took a lot of flak for judging companies too harshly and setting the bar for corporate performance so high that executives felt their only option was to slash payrolls.

Intellectual-property rules are clearly necessary to spur innovation: if every invention could be stolen, or every new drug immediately copied, few people would invest in innovation. But too much protection can strangle competition and can limit what economists call 'incremental innovation' - innovations that build, in some way, on others.

Capitalism, after all, is no fun when real failure becomes a possibility.