ABSTRACT
The question which constantly recurs in any study of money is whether one is dealing with one single institution, in which case one is confronted with the problem of identifying and defining it, or with a number of different institutions, in which case one is concerned to discover not only the relationships between them-whether according to some evolutionary or historical scheme or on the basis of the interactions across their common boundariesbut also the attributes which they have in common, and which justify, therefore, their being treated as different occurrences of one single phenomenon, money.
