The jurist is totally unacquainted with the problem of the value of money; he knows nothing of fluctuations in its exchange-value. The naive popular belief in the stability of the value of money has been admitted, with all its obscurity, into the law, and no great historical cause of large and sudden variations in the value of money has ever provided.

The entrepreneur who is reckoning in terms of a currency with a stable value is unable to compete with the entrepreneur who is prepared to make a quasi-gift of part of his capital to his customers. In 1920 and 1921, Dutch traders who had sold commodities to Austria could buy them back again after a while much cheaper than they had originally sold them, because the Austrian traders completely failed to see that they were selling them for less than they had cost.

What is thus improperly regarded as profit, instead of as part of capital, is consumed by the entrepreneur or passed on either to the consumer in the form of price-reductions that would not otherwise have been made or to the labourer in the form of higher wages, and the government proceeds to tax it as income or profits. In any case, consumption of capital results from the fact that monetary depreciation falsifies capital accounting.

Where the currency depreciation is a result of government inflation carried out by the issue of notes, it is possible to avert its disastrous effect on economic calculation by conducting all bookkeeping in a stable money instead. But so far as the depreciation is a depreciation of gold, the world money, there is no such easy way out.

When the price of coal falls because production has increased while demand has remained unaltered, then, for example, those retailers are involved who have taken supplies from the wholesale dealers at the old higher price but are now able to dispose of them only at the new and lower price. But this alone will not account for all the social changes brought about by the increase of production of coal. The increase in the supply of coal will have improved the economic position of the community.

The social displacements that occur as consequences of variations in the value of money result solely from the circumstance that this assumption never holds good. In the chapter dealing with the determinants of the objective exchange-value of money it was shown that variations in the value of money always start from a given point and gradually spread out from this point through the whole community.

The exchange-value of money is the anticipated use-value of the things that can be obtained with it.

By 'the objective exchange-value of money' we are accordingly to understand the possibility of obtaining a certain quantity of other economic goods in exchange for a given quantity of money; and by 'the price of money' this actual quantity of other goods.

For when the Law of Price declares that a good actually commands a particular price, and explains why it does so, it of course implies that the good is able to command this price, and explains why it is able to do so. The Law of Price comprehends the Law of Exchange-Value.