Hoppe's grouping us with defenders of fiat money is therefore puzzling, especially given that he recognizes (pp. 69-70) that our monetary ideal "is a universal commodity money such as an international gold standard." So how are we supposed to favor both fiat and commodity money? The answer lies in a verbal sleight-of-hand. Although beginning his article with what seems to be the conventional definition of fiat money ("a medium of exchange which is neither a commercial commodity, a consumer, or a producer good, nor title to any such commodity; i.e., irredeemable paper money"), Hoppe tacitly redefines the category of fiat money to include banknotes and deposits that are redeemable-on-demand claims to commodity money, so long as they are not backed 100 percent by reserves of commodity money.(4) It is true that we have offered both ethical and economic arguments in defense of the contractual practice of fractional-reserve banking.
Any author is free to redefine terms as he pleases, but it is misleading for him to depart from an established usage without announcing plainly that he is doing so. Hoppe's expanded usage of "fiat money" is unorthodox, to say the least, even from an Austrian point of view. Mises (1966, p. 429, emphasis added), for one, defined fiat money as "money consisting of mere tokens which can neither be employed for any industrial purpose nor convey a claim against anybody." He carefully distinguished the category of base money or "money in the narrower sense," which includes gold coins (in a gold standard regime) and true fiat currency (in a fiat money regime), from the category of "money substitutes," which includes fractionally-backed checking deposits and banknotes (which of course do convey a claim against banks). Finally, Mises (1966, p. 433; 1980, appendix B) referred to that portion of redeemable money substitutes backed by assets other than base money as "fiduciary media," not as any kind of fiat money. Rothbard (1970a, p. 703) follows Mises's terminology in every particular. According to the Misesian terminology, then, a fractionally-backed banknote that is de facto redeemable, and is recognized by the public to be redeemable, is not an example of fiat money. Contrary to Hoppe's (pp. 49, 73) innovative phraseology, it is neither a "fractional" fiat money nor a "partial" fiat money.(5) It is instead a fractionally or partially fiduciary medium.
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4 Perhaps this view is that, even when in practice a fractional-reserve bank for years fulfills every redemption request that actually comes to it, nonetheless its notes should really be considered irredeemable because the bank would default if all its notes and demand deposits were presented for redemption simultaneously. And for the same reason Hoppe may view the title conveyed by a banknote's contractual pledge that the bank "will pay to the bearer on demand" as not genuinely a title at all.
5 Redeemable bank liabilities are not fiat money even if the (fractional) bank reserves themselves consist of fiat money. In Misesian terms, a bank-issued medium of exchange is a "money substitute," i.e., a substitute for money proper (either for fiat or for commodity money).
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