A report last month in The Times by David Leonhardt and Kevin Quealy noted that the American middle class is no longer the richest in the world, with Canada apparently pulling ahead in median after-tax income. Other countries in Europe are poised to overtake us as well.

In fact, the discrepancy is arguably even greater. Canadians receive essentially free health care, while Americans pay for part of their health care costs with after-tax dollars. Meanwhile, the American worker toils, on average, 4.6 percent more hours than a Canadian worker, 21 percent more hours than a French worker and an astonishing 28 percent more hours than a German worker, according to data from the Organization for Economic Cooperation and Development.

Canadians and Europeans also live longer, on average, than Americans do. Their children are less likely to die than ours. American women are twice as likely to die as a result of pregnancy or childbirth as Canadian women. And, while our universities are still the best in the world, children in other industrialized countries, on average, get a better education than ours. Most sobering of all: A recent O.E.C.D. report found that for people aged 16 to 24, Americans ranked last among rich countries in numeracy and technological proficiency.