From Brad DeLong.
Glaukon: But the bottom line is that we don't have good explanations at any deep level for why the U.S. today is and stays 30 times richer than Kenya.
Akhilleus: Or, rather, that we have good explanations but they are historians', political scientists', and sociologists' explanations--not explanations in which a facility with the differential calculus is terribly helpful and thus not explanations instrumentally useful to a sect of academics who want to use their facility with the differential calculus to impose a form of hegemonic domination over social science in general.
The post has a great title, too: "After the Examination All Professors Are Sad: A Dialogue About Teaching the Wrong Thing."
