Question For Supporters Of The Minimum Wage

Given by economist Don Boudreaux:

In the U.S. in 1948, quoting my colleague Walter Williams, “the unemployment rate for white 16-17 year olds was 10.2 percent while that for blacks was 9.4 percent. Among white 18-19 year-olds, unemployment was 9.4 percent and for blacks it was 10.5 percent.” Today (October 2013) the unemployment rate for white 16-19 year olds is 19.4%; the unemployment rate for black 16-19 year olds is 36.0% - nearly double the rate of white teenage unemployment. (In 2006 – the year before the current recession began – the unemployment rate for white 16-19 year olds was 13.2%; the unemployment rate for black 16-19 years olds was 29.0% - slightly more than double the rate of white teenage unemployment.)

That is, the unemployment rate of black teenagers in 1948 was comparable to that of white teenagers, and about 2.5 times higher than the overall unemployment rate of 3.8%. Today, the unemployment rate for black teenagers is much higher than that for white teenagers, and nearly 5 times higher than the overall unemployment rate of 7.3%. (In 2006, the year before the current recession began, the unemployment rate for black teenagers was 6.3 times higher than the overall unemployment rate of 4.6%.)

How do you explain these data? Are American employers more prejudiced in 2013 than in 1948 against teenagers? More importantly, are Americans more racist in 2013 than they were in 1948?

These facts about teenage unemployment are straightforwardly explained by the standard economic theory that predicts that a legislated minimum wage causes the lowest-skilled, most poorly educated, or otherwise least-desirable workers to be the first to be fired and the last to be hired. What is your alternative explanation?