Depends. Krugman's actual economics has been brilliant, for the most part. The problem is no one knows him for his economics. People know him for his New York T

Depends. Krugman's actual economics has been brilliant, for the most part. The problem is no one knows him for his economics. People know him for his New York Times column, and the two are only very tangentially related. (For some reason, I had no reply button on lil_cain's comment). Cochrane even notes that Krugman's actual econ work was brilliant. I'm old enough to remember when Krugman was young, working out the interactions of game theory and increasing returns in international trade for which he won the Nobel Prize...He once wrote eloquently about how only math keeps your ideas straight in economics." I would agree with lil_cain -- Krugman's econ work was brilliant -- while point out that Cochrane's critique was largely that Krugman is no longer practicing economics.