Assume that a smith of the Homeric age has fashioned two suits of copper armor and wants to exchange them for copper, fuel, and food. He goes to market and offers his products for these goods. He would doubtless be very pleased if he were to encounter persons there who wish to purchase his armor and who, at the same time, have for sale all the raw materials and foods that he needs. But it must obviously be considered a particularly happy accident if, among the small number of persons who at any time wish to purchase a good so difficult to sell as his armor, he should find any who are offering precisely the goods that he needs. He would therefore make the marketing of his commodities either totally impossible, or possible only with the expenditure of a great deal of time, if he were to behave so uneconomically as to wish to take in exchange for his commodities only goods that have use value to himself and not also other goods which, although they would have commodity-character to him, nevertheless have greater marketability than his own commodity. Possession of these commodities would considerably facilitate his search for persons who have just the goods he needs. In the times of which I am speaking, cattle were, as we shall see below, the most saleable of all commodities.
Even if the armorer is already sufficiently provided with cattle for his direct requirements, he would be acting very uneconomically if he did not give his armor for a number of additional cattle. By so doing, he is of course not exchanging his commodities for consumption goods (in the narrow sense in which this term is opposed to “commodities”) but only for goods that also have commodity-character to him. But for his less saleable commodities he is obtaining others of greater marketability. Possession of these more saleable goods clearly multiplies his chances of finding persons on the market who will offer to sell him the goods that he needs. If our armorer correctly recognizes his individual interest, therefore, he will be led naturally, without compulsion or any special agreement, to give his armor for a corresponding number of cattle. With the more saleable commodities obtained in this way, he will go to persons at the market who are offering copper, fuel, and food for sale, in order to achieve his ultimate objective, the acquisition by trade of the consumption goods that he needs. But now he can proceed to this end much more quickly, more economically, and with a greatly enhanced probability of success. Continue reading →