South By North Strategies, Ltd.

New York magazine’s profile of Paul Krugman contains ample examples of economists being catty.

I ask [former U.S. Treasury Secretary Lawrence]Summers what he thinks is Krugman’s underlying complaint with the Obama administration. “Paul may be the smartest and most creative applied economic thinker of this era,” he says, “but there is some element of him that is like the guy in the bleachers who always demands the fake kick, the triple-reverse, the long bomb, or the big trade.”
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The two economists have known each other since the late seventies, when they were both graduate students in Cambridge, and there were moments in conversation with Krugman that I began to suspect he viewed Summers as a one-man control group for his study of himself. They each share a high assessment of the other’s intellect (“Larry’s extremely smart—ask him and he’ll tell you,” Krugman says). Krugman’s sense of humor is built upon self-deprecation, and sometimes Summers’s sense of humor is built upon deprecating Krugman, too. In the early eighties, when the two worked together in the Reagan administration, Krugman realized that Summers had a talent for effectiveness—winning meetings, organizing subordinates, convincing economic novices of his point of view—that he himself could not hope to match. Summers became the insider and Krugman the outsider.