Marx and Money : Which is the Way? (Marx y el Dinero; Cuál es el Camino?) (Spanish)

The aim of this essay is to join the discussion on an important issue in economic theory like is the money. For this, we shall analyse an important theory in economics; this theory was proposed by Karl Marx, where the money has a great importance to understand the development of the economic process. Is here where Marx takes a different path to the classical economists because for him they were wrong to try to look for the measure of value without including the money