Reproduced by permission of Libertarian Press. Up to this point in our discussion the law of the value of production goods was developed subject to the simplifying hypothesis that every group of means of production admits of utilization only to one very definite purpose. That hypothesis is in real life only very rarely in agreement with the facts. It is preeminently production goods, far more than consumption goods, which are characterized by egregious heterogeneity. The overwhelming majority of them will be capable of service in several productive fields, some are adaptable to thousands of such productive services.
Examples are iron, coal, and above all, human labor.
Of course, we have to take these factual circumstances into account in conducting our theoretical investigation. We must observe what modifications, if any, affect the law that the value of a group of goods occupying remote orders is governed by the value of their product. From each of these groups he can produce at will a consumption good of the category A, or one of category B or finally, of category C. He desires, of course, to take advance measures toward balanced provision for his various wants, and will therefore draw simultaneously on various parts of his supply of means of production to produce consumption goods of all three categories. And he will produce amounts in each in accordance with his needs. If there is genuinely balanced provision, the quantities produced will be so regulated that needs of approximately equal importance depend upon the last specimen in each category, and that thus the marginal utilities are approximately equal.