The Theory of Money and Credit - Ludwig von Mises [97]
But however clearly we may be able to imagine such a monetary system, it certainly does not lie in our power actually to create one like it. We know the determinants of the value of money, or think we know them. But we are not in a position to bend them to our will. For we lack the most important prerequisite for this; we do not so much as know the quantitative significance of variations in the quantity of money. We cannot calculate the intensity with which definite quantitative variations in the ratio of the supply of money and the demand for it operate upon the subjective valuations of individuals and through these indirectly upon the market. This remains a matter of very great uncertainty. In employing any means to influence the value of money we run the risk of giving the wrong dose. This is all the more important since in fact it is not possible even to measure variations in the purchasing power of money. Thus even though we can roughly tell the direction in which we should work in order to obtain the desired variation, we still have nothing to tell us how far we should go, and we can never find out where we are already, what effects our intervention has had, or how these are proportioned to the effects we desire.
Now the danger involved in overdoing an arbitrary influence—a political influence; that is, one arising from the conscious intervention of human organizations—upon the value of money must by no means be underestimated, particularly in the case of a diminution of the value of money. Big variations in the value of money give rise to the danger that commerce will emancipate itself from the money which is subject to state influence and choose a special money of its own. But without matters going so far as this it is still possible for all the consequences of variations in the value of money to be eliminated if the individuals engaged in economic activity clearly recognize that the purchasing power of money is constantly sinking and act accordingly. If in all business transactions they allow for what the objective exchange value of money will probably be in the future, then all the effects on credit and commerce are finished with. In proportion as the Germans began to reckon in terms of gold, so was further depreciation rendered incapable of altering the relationship between creditor and debtor or even of influencing trade. By going over to reckoning in terms of gold, the community freed itself from the inflationary policy, and eventually even the government was obliged to acknowledge gold as a basis of reckoning.
A danger necessarily involved in all attempts to carry out an inflationary policy is that of excess. Once the principle is admitted that it is possible, permissible, and desirable, to take measures for "cheapening" money, then immediately the most violent and bitter controversy will break out as to how far this principle is to be carried. The interested parties will differ not merely about the steps still to be taken, but also about the results of the steps that have been taken already. It would be impossible for any inflationary measures to be taken without violent controversy. It would be practically impossible so much as to consider counsels of moderation. And these difficulties arise even in the case of an attempt to secure what the inflationists call the beneficial effects of a single and isolated depreciation. Even in the case, say, of assisting "production" or debtors after a serious crisis by a single depreciation of the value of money, the same problems remain to be solved. They are difficulties that have to be reckoned with