Those determinants of the objective exchange value of money that have already been considered exhibit no sort of special peculiarity. So far as they are concerned, the exchange value of money is determined no differently from the exchange value of other economic goods. But there are other determinants of variations in the objective exchange value of money which obey a special law.

With many others, and in agreement with general popular opinion, Wagner assumes the predominance of a tendency toward the diminution of the objective exchange value of money. He holds that this phenomenon can be explained by the fact that the supply side is almost invariably the stronger and the most capable of pursuing its own acquisitive interest. Even apart from actual cartels, rings, and combinations, and in spite of all the competition of individual sellers among themselves, he claims that the supply side has more solidarity than the opposing demand side.

Wieser’s attempt52  to explain an increase in the money prices of goods unaccompanied by any considerable change in their value in terms of other goods, is not entirely satisfactory either.

Nevertheless, the progressive rise of prices and its complement, the fall in the value of money, may quite well be explained from the monetary side, by reference to the nature of money and monetary transactions.

That the objective exchange value of money as historically transmitted (der geschichtlich überkommene objektive Tauschwert des Geldes) is affected not only by the industrial use of the material from which it is made, but also by its monetary use, is a proposition which hardly any economist would nowadays deny. It is true that lay opinion was molded entirely by the contrary belief until very recent times.

The process, by which supply and demand are accommodated to each other until a position of equilibrium is established and both are brought into quantitative and qualitative coincidence, is the higgling of the market. But supply and demand are only the links in a chain of phenomena, one end of which has this visible manifestation in the market, while the other is anchored deep in the human mind. The intensity with which supply and demand are expressed, and consequently the level of the exchange ratio at which both coincide, depends on the subjective valuations of individuals.

Those variations in the ratio between the individual’s demand for money and his stock of it that arise from purely individual causes cannot as a rule have a very large quantitative influence in the market. In most cases they will be entirely, or at least partly, compensated by contrary variations emanating from other individuals in the market. But a variation in the objective exchange value of money can arise only when a force is exerted in one direction that is not canceled by a counteracting force in the opposite direction.

We have already examined one of the objections that have been brought against the quantity theory: the objection that it only holds good ceteris paribus. No more tenable as an objection against the determinateness of our conclusions is reference to the possibility that an additional quantity of money may be hoarded. This argument has played a prominent role in the history of monetary theory; it was one of the sharpest weapons in the armory of the opponents of the quantity theory.

In general the quantity theory has not been used for investigating the consequences that would follow a decrease in the demand for money while the stock of money remained the same. There has been no historical motive for such an investigation. The problem has never been a live one; for there has never been even a shadow of justification for attempting to solve controversial questions of economic policy by answering it. Economic history shows us a continual increase in the demand for money.

According to modern value theory, price is the resultant of the interaction in the market of subjective valuations of commodities and price goods. From beginning to end, it is the product of subjective valuations. Goods are valued by the individuals exchanging them, according to their subjective use-values, and their exchange ratios are determined within that range where both supply and demand are in exact quantitative equilibrium.