Many economists, politicians and pundits assert that median wages have stagnated since the 1970s. That’s a call for government to do something about it. But before we look at the error in their assertion, let’s work through an example that might shed a bit of light on the issue.

Suppose that you paid me a straight $20 an hour in 2004. Ten years later, I’m still earning $20 an hour, but in addition, now I’m receiving job perks such as health insurance, an employer-matched 401(k) plan, paid holidays and vacation, etc. Would it be correct to say that my wages have stagnated and I’m no better off a decade later? I’m guessing that the average person would say, “No, Williams, your wages haven’t stagnated. You forgot to include your nonmonetary wages.” My colleagues Donald Boudreaux and Liya Palagashvili discuss some of this in their recent Wall Street Journal op-ed, “The Myth of the Great Wages ‘Decoupling.’ ”