word value is intended.[52] He can find no definite meaning for value as an unqualified term. Now in this I believe he is correct. Economic value is not total utility to an individual, nor marginal utility to an individual, nor is it a mere ratio of exchange. If no other meaning of the term can be found--and no other meaning _can_ be found on Jevons's psychological assumptions--then the term should be abandoned altogether. Pareto's position[53] is essentially similar. "Ophelimity" (which he uses in place of the more ambiguous "utility" to mean what Jevons means by the latter term) "is an entirely subjective quality." (4.) "On ne doit pas oublier que le vigneron etablit l'egalite des deux ophelimites pour lui, et que le laboureur fait de meme, mais qu'il n'y a aucun rapport entre l'ophelimite du vin pour le vigneron et pour le laboureur, ni entre l'ophelimite du ble pour le vigneron et pour le laboureur. Il faut toujours se rapeller ce caractere subjectif de l'ophelimite." (21.) Now no quantity of value, irrespective of the particular holder of the good, emerges for Pareto. Value is either a "_rapport de convenance_" between a man and a good, i.e., ophelimity, or is a "_taux d'echange_," a ratio between two goods. (30.) The older term, "_puissance d'achat_," power in exchange, which John Stuart Mill makes synonymous with value in exchange, is, at bottom, nothing but a vague conception of ophelimity. (30.) The two conceptions, ratio of exchange and ophelimity, are to be sharply distinguished, power in exchange is ruled out as a vague and confused conception, and value as an objective quantity does not appear at all. Davenport, who recognizes clearly "the rich-man-poor-man complication,"[54] and avoids, for the most part, the confusion into which others have fallen, of mixing a demand-price curve and a utility curve (a confusion dealt with in detail in the next chapter), and who accepts the psychological assumption of subjective isolation unreservedly,[55] reaches, as already indicated, the same conclusion regarding the nature of value. For him there is no social validity in value except as a ratio of exchange.[56] The same may be said for Boehm-Bawerk, so far as his formal analysis goes. It is true that he recognizes the existence of an "objective value in exchange"[57] in addition to "subjective value" and "subjective value in exchange," and in addition to price,[58] but he makes no effort to exhibit its nature, or to show its origin. His study has to do with individual subjective ratios, between the marginal utilities of two goods, and the market ratio, or price, that results from the meeting of these individual ratios--_not utilities_--in the market. The nature of his objective exchange value is expected to become clear, somehow, from this surface determination of price:--