Flexible supply chains are great for multinationals and consumers. But they erode already thin profit margins in developing-world factories and foster a pell-mell work environment in which getting the order out the door is the only thing that matters.

Of course, plenty of people don't think that guaranteeing affordable health insurance is a core responsibility of government.

Standards wars involve lots of variables, and understanding them often seems more an art than a science. They generally involve just two big players, and end in a winner-take-all situation.

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.

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.

Instead of mindlessly tossing billions at or taking billions from the Net as such, investors should be spending their time making sure that it's the future Fords and General Motors of cyberspace that are getting the capital they need.

If you thought the advent of the Internet, the spread of cheap and efficient information technology, and the growing fragmentation of the consumer market were all going to help smaller companies thrive at the expense of the slow-moving giants of the Fortune 500, apparently you were wrong.