The Theory of Money and Credit - Ludwig von Mises [221]
Nevertheless the nominalistic doctrine did not disappear from monetary literature. The princes of the time, who saw in the debasement of money an important means of improving their financial position, needed the justification of this theory, If, in its endeavors to construct a complete theory of the human economy, the struggling science of economics kept itself free from nominalism, there were nevertheless always enough nominalists for fiscal needs. At the beginning of the nineteenth century, nominalism still had representatives in Gentz and Adam Müller, writing in support of the Austrian monetary policy of the Bankozettel period. And nominalism was used as a foundation for the demands of the inflationists. But it was to experience its full renascence in the German "realistic" economics of the twentieth century.
An acatallactic monetary theory is a logical necessity for the empirico-realistic trend in economics. Since this school, unfavorable to all "theory," refrains from propounding any system of catallactics, it is bound to oppose any monetary doctrine that leads to such a system. So at first it avoided any treatment of the problem of money whatever; so far as it did touch upon this problem (in its often admirable work on the history of coinage and in its attitude toward political questions), it retained the traditional Classical theory of value. But gradually its views on the problem of money glided unconsciously into the primitive acatallactic ideas described above, which regard money made of precious metal as a good that is valuable "in itself." Now this was inconsistent. To a school that has inscribed the device of etatism on its banner, and to which all eco nomic problems appear as questions of administration, the state theory of nominalism is more suitable. [2] Knapp completed this connection. Hence the success of his book in Germany.
The fact that Knapp has nothing to say about the catallactic monetary problem, the problem of purchasing power, cannot be regarded as an objection from the point of view of a doctrine which repudiates catallactics and has abandoned in advance any attempt at a causal explanation of the determination of prices. The difficulty over which the older nominalistic theories had come to grief did not exist for Knapp, whose public consisted solely of the disciples of the realistic economics. He was able—in fact, considering his public, he was bound—to abandon all attempt at an explanation of the validity of money in commerce. If important questions of monetary policy had arisen in Germany in the years immediately succeeding the appearance of Knapp's work, then the inadequacy of a doctrine that was unable to say anything about the value of money would naturally have soon become evident.
That the new state theory did compromise itself immediately it was put forward, was due to its unlucky attempt to deal with currency history from an acatallactic point of view. Knapp himself, in the fourth chapter of his work, had briefly related the monetary history of England, France, Germany, and Austria. Works on other countries followed, by members of his seminar. All of these accounts are purely formal. They endeavor to apply Knapp's scheme to the individual circumstances of different states. They provide a history of money in Knappian terminology.
There could be no doubt of the results that were bound to follow from these attempts. They expose the weaknesses of the state theory. Currency policy