At the Library of Law and Liberty Dalrymple calls attention to the two most obvious characteristics of Paul Krugman’s writings: nonsense and incivility.
Mr Krugman’s argument is not the argument in favor of labor market rigidity as above, however. He is what one might call a slice-of-cake man, where an economy is a cake to be sliced rather than a dynamic organism to be nurtured, and where supply and demand can be managed without reference to price. There may be cruder economic ideas, but I don’t know what they are.