Here's what President Barack Obama said about our high rate of unemployment in an interview with NBC's Ann Curry: "The other thing that happened, though — and this goes to the point you were just making — is there are some structural issues with our economy, where a lot of businesses have learned to become much more efficient with a lot fewer workers," adding that "you see it when you go to a bank and you use an ATM; you don't go to a bank teller. Or you go to the airport and you're using a kiosk instead of checking in at the gate." The president's statements suggest that he sees labor-saving technological innovation as a contributor to today's high rate of unemployment. That's unmitigated nonsense. Let's see whether technological innovation causes unemployment.

In 1790, farmers were 90 percent, out of a population of nearly 3 million, of the U.S. labor force. By 1900, only about 41 percent of our labor force was employed in agriculture. By 2008, fewer than 3 percent of Americans were employed in agriculture. Through labor-saving technological advances and machinery, our farmers are the world's most productive. As a result, Americans are better off.

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Walter E. Williams (photo)