It is pretty well established within Austrian economics that the optimum quantity of money is whatever level is established at any given time. The logical implication of this claim is that any amount of the commodity that intermediates trade will do as well as any other in acquitting this task....

In recent years, there has been renewed interest in index number and aggregation theory, since the two previously divergent fields have been successfully unified. The underlying aggregator functions which are weakly separable subfunctions of utility and production functions, are the building...