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.

Punk rock has never really had much patience with musical virtuosity. Actually, it'd be more accurate to say that for most of its history, punk has been actively hostile to virtuosity.

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.

Now, modern economies have a very effective mechanism for deciding if salaries are really too high: it's called the free market. That's how most people's salaries are set, after all, including those of major-league baseball players and European soccer players.

Publishers, naturally, loathe used books and have developed strategies to depress the secondhand market. They bring out new, even more expensive editions of popular textbooks every three to four years, in a classic cycle of planned obsolescence.

Being out of a job can erode people's confidence and their sense of possibility; and employers, often unfairly, tend to take long-term unemployment as a signal that something is wrong.

Companies, like people, don't much like to change.