Bruce Caldwell has disputed a number of points in my earlier account of the development of the Austrian school of economics from Carl Menger to Ludwig von Mises and F.A. Hayek. The issues in contention regard Friedrich von Wiesers intellectual affiliation with Hayek and his influence on the formation of Hayeks economic thought; Wiesers status as a general equilibrium theorist; and the reason for Hayeks early flirtation with general equilibrium theory. In this article I argue that Hayek was a self-conscious adherent of the Wieserian tradition and remained so even after he received the Nobel Prize in 1974 and that he distinguished between this tradition and the Böhm-Bawerkian tradition followed by Ludwig von Mises. I also contend that Wieser ...