The value concept here presented performs the same logical functions as the "inner objective value" of Karl Menger, Ludwig von Mises, and Karl Helfferich, discussed in our chapter on "Marginal Utility," below, and is, in its formal and logical aspects, to be identified with that notion. It is essentially like Wieser's "public economic value," discussed in the same chapter.[16] That there should remain critics[17] who consider the present writer a daring innovator, who is thrusting a personal idiosyncracy in terminology upon economic theory, is striking evidence that men often talk about books which they have not read! The reader who accepts, provisionally, the doctrine so far presented, as a tool of thought which will aid us in the further progress of the argument, may do so with the full assurance that he is accepting a tried and tested concept, which has seemed necessary to very many indeed of the great masters of the science.[18] So far, the writer feels himself in accord with the main current of economic thought. When we come to a causal explanation of the value quantity, however, earlier theories appear unsatisfactory. The labor theory of value has long since broken down, and has been generally abandoned. The reasons for this will appear in the chapter on "Cost of Production." The effort to explain value by marginal utility, by the satisfactions which individuals derive from the last increment consumed of a commodity, has likewise broken down, as will appear in the chapter on "Marginal Utility." In general, it may be said that the effort to pick out feeling magnitudes,[19] either of pleasure or pain, in the minds of individuals, and combine them into a social quantity, leads to circular reasoning. Thus, the utility theory: It is not alone the intensity of a man's marginal desire for a good which determines his influence on the market. If he has no money, he may desire a thing ever so intensely without giving it value. If he is rich, a slight desire counts for a great deal. In other words, utility, backed by _value_, gives a commodity value. But this is to explain value by value, which is circular. So with the theory of average labor _time_. How shall we average labor time? The problem is easy if we confine ourselves, say, to wheat. If one bushel of wheat is produced with ten hours' labor, a second with eight hours' labor and a third with six hours' labor, the average is eight hours, and we may fix the value of the bushel of wheat according. But suppose we wish to compare the labor engaged in making _hats_ with the labor engaged in raising wheat. How can such labor be compared? Hats are, in their physical aspects, incommensurable with wheat. The one quality which they have in common, relevant to the present interest, is _value_. Given the value of the wheat and the value of the hats, you may compare and average out the labor engaged in producing them. But if value must be employed as a means of averaging