question:  What is the most accurate paraphrase of Paul Krugman’s reply to John Cassidy?
context: Letter from John Cassidy Paul Krugman replies to John Cassidy Letter from M. Mitchell Waldrop Paul Krugman replies to M. Mitchell Waldrop Letter from Kenneth J. Arrow Letter from Ted C. Fishman David Warsh's July 3, 1994, Boston Globe Letter from John Cassidy: Paul Krugman loves to berate journalists for their ignorance of economics, particularly his economics, but on this occasion, I fear, his logic is more addled than usual. I am reluctant to dignify his hatchet job with a lengthy reply, but some of his claims are so defamatory that they should be addressed, if only for the record. 1) Krugman claims that my opening sentence--"In a way, Bill Gates's current troubles with the Justice Department grew out of an economics seminar that took place thirteen years ago, at Harvard's John F. Kennedy School of Government"--is "pure fiction." Perhaps so, but in that case somebody should tell this to Joel Klein, the assistant attorney general in charge of the antitrust division. 3) Pace Krugman, I also did not claim that Arthur bears principal responsibility for the rediscovery of increasing returns by economists in the 1970s and 1980s. 4) Krugman appears to suggest that I made up some quotes, a charge that, if it came from a more objective source, I would consider to be a serious matter. 5) For a man who takes his own cogitations extremely seriously, Krugman is remarkably cavalier about attributing motives and beliefs to others. Evidently, Krugman felt four years ago that Arthur's contribution was important enough to merit a prominent mention in his book. Now, he dismisses the same work, saying it "didn't tell me anything that I didn't already know." Cassidy Paul Krugman replies to John Cassidy: I think that David Warsh's 1994 in the Boston Globe says it all. As a professional journalist, I found his points well taken--even when he cites my own book, Complexity as a classic example of the gullibility genre.
output:  “David Warsh is a journalist who did it right.”
options:  “I disagree with you.”  “Your article was better than David Warsh’s.”  “My article was a necessary contribution to the research.”  “David Warsh is a journalist who did it right.”