It is shocking to discover just how much of the debate over politics and policy rests on semi-arbitrary government standards for measuring things. For example, if you believe the Consumer Price Index speaks with absolute authority, then you will believe obviously absurd things, like the idea that real wages have stagnated. Virginia Postrel has a nice short essay in Forbes [free reg. req.] on this aspect of the mismeasurement of economic progress. If Bureau of Labor Statistics true-believers are right, then
… you have to wonder who’s buying all those flat-screen TVs, serving precooked rotisserie chicken for dinner or organizing their closets with Elfa systems. “Anybody who thinks things are getting worse should go to Best Buy and notice the type of people who go to Best Buy,” says economist Robert J. Gordon of Northwestern University.
Gordon is the author of a much-cited study showing that from 1966 to 2001 real income kept up with productivity gains for only the top 10% of earners. What the pessimists who tout his study don’t say is that, while Gordon does find that inequality is increasing, he’s convinced that the picture of middle-class stagnation is false.
“The median person has had steadily improving standards of living,” he says. But real incomes have been understated. The problem lies in how the U.S. Bureau of Labor Statistics calculates the cost of living.
Similarly, the American Enterprise Institute’s Nicolas Eberstadt has a terrific essay on the bizarre and inaccurate method by which the government calculates the poverty rate in the new Policy Review. Eberstadt shows that the official poverty statistics often get things backwards, indicating that poverty is getting worse when it is in fact getting better according to a number of other noncontroversial measures of economic well-being: