Marx outlines four "peculiarities" (Eigentümlichkeiten) of the equivalent form, namely:
- that "that concrete labour becomes the form under which its opposite, abstract human labour, manifests itself,"
- that "the labour of private individuals takes the form of its opposite, labour directly social in its form", and
- that "the fetishism of the commodity-form is more striking in the equivalent form than in the relative value-form "
We have seen that commodity A (the linen), by expressing its value in the use value of a commodity differing in kind (the coat), at the same time impresses upon the latter a specific form of value, namely that of the equivalent. The commodity linen manifests its quality of having a value by the fact that the coat, without having assumed a value form different from its bodily form, is equated to the linen. The fact that the latter therefore has a value is expressed by saying that the coat is directly exchangeable with it. Therefore, when we say that a commodity is in the equivalent form, we express the fact that it is directly exchangeable with other commodities.— Karl Marx, Capital Volume I, Chapter 1, Section 3