After President Obama tapped Princeton University professor Alan Krueger to chair the Council of Economic Advisors, Washington Post blogger Ezra Klein wrote that Krueger “is arguably the leading labor economist in the country” and “known for bringing a near-superhuman rigor” to the subject. One wonders how any economist would earn a “near-superhuman” superlative for their research. One can particularly wonder in the case of Professor Krueger, who is known for his 1990s academic research that attempted to prove that employee wages were not subject to the laws of supply and demand. In 1993, Krueger and David Card published a study...