As a rule, political economists of the present day do not take the trouble to study the history of money; it is much easier to imagine it and deduce the principles of this imaginary knowledge Alaxander del Mar, A History of monetary systems (1901)

Monetary aggregates

Τι περιγράφουν οι δείκτες Μi και, κυρίως, με πόση ακρίβεια;