It seems to me that the question of whether one can identify economic fallacies depends on a deeper issue that was not satisfactorily resolved in "mainstream economics," and certainly not resolved in the "History of Economic Thought." The issue is what economics is. I think that the reason for this eclectic set of responses and counter-responses to the original question about economic fallacies is diversity in the way the HESers define economics. Indeed, many HESers are not interested in defining economics at all. One who does not wish to define economics could scarcely have anything intelligent to say about what constitutes an economic fallacy. He would presumably only criticize those who DID have something to say because they are not like him. Of course I have made this point about the definition of economics before on this list and have called for a discussion of the subject, but to no avail. Pat Gunning