Unless you are exceptionally coldblooded, it's hard not to be disturbed by today's huge economic inequality. The gap between the rich and the poor is enormous, wider than most Americans would (almost certainly) wish. But this incontestable reality has made economic inequality a misleading intellectual fad, blamed for many of our problems.

Actually, the reverse is true: Economic inequality is usually a consequence of our problems and not a cause.

For starters, the poor are not poor because the rich are rich. The two conditions are generally unrelated. Mostly, the rich got rich by running profitable small businesses (car dealerships, builders), creating big enterprises (Google, Microsoft), being at the top of lucrative occupations (lawyers, doctors, actors, athletes), managing major companies or inheriting fortunes. By contrast, the very poor often face circumstances that make their lives desperate. In an interview with The New Yorker, President Barack Obama recently put it this way: