There seem to be many critical comments addressed towards this paragraph. Yet, upon closer examination, most of the aggressive, critical comments does not even have the slightest clue of who some of these economists are and their academic beliefs.
Many readers have their eyes completely fixated on the mention of Mr. Krugman. Many seem to perceive his name as being the representative agent for the rest of the mentioned economists. This perception is erroneous and mis-lead.
Although most of Mr. De Long's list of good blogging friends are pro-stimulus, pro-monetary expansion, many of them are incredibly pragmatic in their economic work. Two names worth highlighting are Kenneth Rogoff and Carmen Reinhart, who happens to be leading authors in the study of debt. A publication written by the two authors, "debt overhang:past and present" (http://www.nber.org/papers/w18015), offers a clean and pragmatic view of high deficit spending. Their hardly coincides with the view-point of Mr. Krugman; if anything, Rogoff's work on debt goes directly against some of Mr. Krugman's short-run perceptions.