Supply and Demand

Renew：Part 7
Author：Hubert Douglas Henderson
Update：08-15-2023
Tags：Politics Social Science
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Chapter V, but they do not affect the present argument.]
Chapter II where we were treading surely, with a sense of solid ground beneath us, we drew no such invidious distinction between supply and demand. They seemed then to possess an equal status. But cost of production is the chief factor which, in the case of commodities, ultimately determines the conditions of supply. Utility, similarly, is the chief factor which ultimately determines the conditions of demand. Must not then the symmetrical relations between demand and supply be reflected in a corresponding symmetry between the utility and the costs which underlie them? Demand springs obviously from utility; the only motive for buying anything is that it will serve some real or fancied use. Can we then accord to demand so dignified and to utility so subordinate a place? There is here an inconsistency which we must somehow reconcile. It will not serve as a solution to distinguish between different periods of time, and to say, as economists used to say not very long ago, that price is governed over a short period by demand and supply, but in the long run by the cost of production. This still leaves our sense of symmetry unsatisfied. Moreover, the conception of cost of production, when we consider it as ruling over a long period, frequently seems to lose any precision, as an independent factor, which it may otherwise possess. Motor-cars, we have agreed, are more costly to produce than loaves of bread; but, as we know well, the cost of producing motor-cars varies enormously, accordingly as they are produced on a small or a large scale. By the methods of ma.s.s production they can be turned out at a relatively low cost per car. But this requires that they should be purchased in large numbers and this in turn throws us back to the demand for motor-cars, and plainly enough, to people"s judgment as to their utility. In some cases, the opposite phenomenon occurs. In the case of British coal, for instance, the average cost of production would be much lower than it is if the output were reduced to a fraction of its present volume, and if only the richer seams of the more fertile mines were worked. Once again, therefore it is difficult to measure the cost of production until we know the magnitude of the demand, which in a manner, which we have still to elucidate, clearly depends upon the utility.
Chapter VIII, --10]
Chapter III. It would be plainly foolish, for instance, to subst.i.tute for the certainty of an income of $2500 per annum an even chance of $5000 or nothing, since the utility to us of $5000 is not twice as great as that of $2500.
Chapter I, a world socialist commonwealth would require to retain a rate of interest, if only as a matter of bookkeeping, in order to choose between the various capital undertakings that were technically possible. And this is the primary function which the fate of interest fulfils in our present-day society. It separates the sheep from the goats. It serves as a screen, by means of which capital projects are sifted, and through which only those are allowed to pa.s.s which will benefit the future in a high degree. For this essential purpose it is hard to imagine how a better instrument could be devised.
Chapter V: What are the ultimate real costs to which the money cost of production correspond? The attempt has often been made to relate money costs to such things as the effort of working and the sacrifice of waiting. The existence of such costs is beyond dispute. Much saving does mean a sacrifice of immediate enjoyment to the man who saves. Most labor is irksome and disagreeable in itself, and involves strain and wear and tear; while all labor means a deprivation of the utility of leisure. Workpeople, moreover, do not grow on gooseberry bushes, but must be fed and clothed from the cradle; and their rearing and maintenance represents a real cost which someone must incur.
Chapter 7