While Prof. Krugman and most other fiscalists believe this to be self-evident, it is not. Indeed, this fiscalist dogma fails to withstand the indignity of empirical verification. Prof. Paul Krugman's formulation fails to mention the state of confidence. This is an important oversight. As Keynes himself put it: "The state of confidence, as they term it, is a matter to which practical men pay the closest and most anxious attention."