My reply to Peter is that, yes, it is true, and Hayek says, that, "There is no single man to whom I owe more intellectually", and it is also true, at the same time, that, that once we get past the fact that Hayeked owed his problems to their casting by Mises, and their inadequete treatment by Mises, what we find is that Hayek is more clearly influenced in the _answers_ he provided by Menger, Wieser, and Wicksell, than he is by Mises -- and in fact, although Mises gave Hayek the problems in a form that gave Hayek a task to complete, these problems are found earlier in less pointed versions in the workds of Menger, Wieser, Bohm-Bawerk, and Wicksell (i.e. the knowledge problem, and the problem of making sense of the role of equilibrium constructions in monetary theory and trade cycle theory, and the problem of socialist calculation -- all problems already found in Menger, Wieser, Bohm-Bawerk, and Wicksell). Mises cast problems from Menger,Wieser, Bohm-Bawerk, and Wicksell in a form that gave Hayek work to do, solution to find that were not adequately provided by Mises, just as they were not adequately provided by Menger, Wieser, Bohm-Bawerk, and Wicksell. But Hayek's solution came out of the work of Menger, Wieser, and Wicksell, much more that it did Mises, or Mises teacher Bohm-Bawerk. At least that is my judgment -- again I think there are no cut and dried 'right answers' here. Peter could easily provide a more detailed demostration which changes my mind. But even Hayek's remarks when delivering a lecutre in honor of Ludwig von Mises do not seem decisive in establishing the issue one way or the other. There is too much evidence on the other side, as far as I can tell looking at all of the material that I am familiar with. ["There is not single man ...." -- Hayek is talking of Mises, sorry I didn't make that clear in the above.] Greg Ransom Dept. of Philosophy UC-Riverside