Essentials of Economic Theory / As Applied to Modern Problems of Industry and Public Policy

by John Bates Clark

The total absolute utility of the food is measured by the area ABCD, but the total value will be represented by the rectangle ADCE. The area EBC measures the surplus of utility contained in the earlier units in the series.

The Motive for measuring Values in Primitive Life.—Even the cave dweller would have to measure values, and would thus have to apply the principle of final utility, because he would need to spend his limited productive energies in the way that would do him the most good. When he is nearly satiated with food, he needs other things more than he does food stuffs. If he has secured so much of one product that any additional amount that he may get by an hour's labor would be of less use to him than what he could get of some other product by the same amount of labor, it is important for him to change his occupation and produce that thing of which an additional unit—which will perhaps be the final unit of this more desirable article—has the higher degree of usefulness.

Final Utility and Labor Cost.—On the supposition that a small store of roots and nuts were incapable of being replaced by any amount of effort and that no other food were to be had, the utility of it would be indefinitely great, since the man's life would depend on this one increment of food alone. A man would value that life-sustaining good for what it would do for him and without any reference to the amount of work he had performed in order to get it, or to the amount he would have to perform in order to get another store like it. On the supposition that by labor the man could replace this essential supply, the effective utility of it would be gauged by the sacrifice he would have to make in order to replace it. The effective utility of any unit of a good that an hour's labor will produce can never be more than enough to offset the disutility of a marginal or final hour of labor; and thus even a single unit of replaceable food stuff, even when it stands alone and constitutes the whole supply, is valued according to the cost of getting another one like it. A man will prize it according to his dread of the sacrifice involved in getting the duplicate. If he gets this by adding an hour of labor to his day's work, this fact is an evidence that the importance of the original supply of the food is measured and expressed by this personal cost of replacement; and as any similar quantity in a large supply of food can be duplicated by the same amount of labor, it appears that, by a standard based on cost, the effective utilities of all units are equal, that of each one is measured by the "disutility" of an hour's labor and that of the whole supply is this amount multiplied by the number of units that this supply contains.[4]

How Primitive Man measures the Productivity of Labor and Capital.—There is a truth relating to producers' wealth that resembles the truth that we have just stated with regard to consumers' wealth. The more consumers' goods of one kind a man has, the less is the value that any one of them has to him. The more producers' goods of a given kind a man has, the less is the efficiency that any particular one of them possesses as an aid to labor. The last bit of bread serves the man himself in a less important way than does the first, inasmuch as it gratifies a want that is less intense; and the last implement of a given kind—the last hatchet or spade or arrow—helps him less in his productive operations than did the first one. On the one hand, we have the law of the diminishing utility of successive units of consumers' goods, and on the other hand, we have a parallel law of the diminishing productivity of successive increments of producers' goods.

The Necessity for measuring the Productive Powers of Capital Goods even in Primitive Life.—Now, it is necessary for every producer, though living in the simplest possible manner, to measure in some way the efficiency of the last unit of each kind of productive instrument that he uses. He has, let us say, a certain number of hatchets and of arrows, and he can produce one hatchet with the same amount of labor that would produce an arrow. Now, if a hatchet will do more good than an arrow, he will direct his energies to the making of the hatchet. It is important that any producer should bring the final units of the different parts of his equipment to a certain uniformity of producing power. He must not go on adding to the stock of implement No. 1 when implement No. 2, which could be had by the same expenditure of labor, would do more good; nor must he add to the stock of either of these after he has acquired such a supply of them that the first unit of implement No. 3 would be of greater importance. Measuring the efficiency of producers' goods is necessary in the case of every one who creates wealth at all, and such measurements reveal the fact that the more producers' goods of one kind a man has, the less is the productive power that resides in one of them.[5]

The Foregoing Truths Universal.—All the general facts which have been thus far stated hold true wherever wealth is produced. They do not presuppose the facts of a division of labor and a system of exchanges, and they do not even require that there should be any social organization. Men in the most primitive tribes and even men living in Crusoe-like isolation would create wealth by labor aided by capital. The essence of that wealth would be effective utility, and the measure of this, which is value, would be made in the specific way that we have described. The varieties of capital, the distinction between capital and capital goods, and the law of diminishing productivity of such goods would appear in the most primitive economics as well as in the most advanced. These are by no means all of the facts and principles which are thus of universal application. They are merely a few of the more important and may serve as a foundation or a "Grundlegung," for further study. If we should extend our list of general and basic truths, it would quickly appear that the incomes that have been treated as rent and the various surplus gains which are analogous to rent are universal economic phenomena which it would be not illogical to discuss in the preliminary part of this treatise. What has been stated, however, concerning the laws of diminishing productivity of successive units of producers' wealth, concerning the diminishing utility of successive units of consumers' wealth, and also concerning the increasing burdensomeness of continuous hours of labor, presents the essential principles on which all rents and quasi-rents rest. It is best to study the applications of these principles as they are made in a civilized state.

Universal Economic Truths independent of the Special Facts of Sociology.—This first division of economic science borrows none of its premises from sociology, for the truths which compose it would abide if there were no society in existence. Basic facts it takes from Physics, Biology, Psychology, Chemistry, etc. Facts concerning man, nature, and the relation between them are material for it, but relations between man and man come into view only in the later divisions. There, indeed, they do come into the very foreground with results which immeasurably enrich the science. What we may call the socialization of the economic process we shall have next before us, and we shall find it full of critical problems involving the future well-being of humanity. Industry is carried on by a social organism in which men are atomic parts and to which nature has given a constitution with laws of action and development. We have first to study the nature of this industrial organism and the mode in which it would act if it were not subject to any constitutional change; and later we must study it in its process of growth. The economic action of a society which is undergoing no organic changes is the subject of Social Economic Statics, while such changes with their causes and effects constitute the subject of the science of Social Economic Dynamics.

FOOTNOTES

[1] For extended discussions of the relations of utility and value the reader is referred to the works of Jevons, Menger, Von Wieser, Von Böhm-Bawerk, and Walras. A study of "effective" utility and its relations to value, by the writer of the present treatise, is contained in the New Englander for July, 1881.