Krugman’s heavy pounding of Chicago School economics goaded Cochrane, a professor of finance, into some bad-tempered counter-punching on the university’s Web site, much of which consisted of a personal attack on Krugman’s scientific integrity. When he gets around to economics, Cochrane aims his blows at two points: Krugman’s attack on the “efficient market theory” and his advocacy of “fiscal stimulus” for depressed economies.