The M-F model is scanty in that it only describes a single country and contains no representation of how the rest of the world responds to, and interacts with, what it does. And the logical framework of M-F is impoverished in that (like the IS-LM model itself), while “the money supply” plays a key role, money has no accounting relationship to any other variable. The model also contains no explicit analysis of what happens when either goods and services or financial assets are traded between countries. Moreover, the M-F model characterises neither the way in which the relevant equilibria are.
