24 p.This article deals with the role and the place of the money in the process of coordination in a decentralized market economy. The equilibrium models assume that the coordination is carried out through market mechanisms. These mechanisms are mainly real and individual mechanisms but they seem to be unable to integrate money into the theoretical construction. We opt then for a noticeably different method by taking the money as the departure point of the economic analysis and we try to understand economic phenomena through the monetary prism. We show why and how a monetary approach could be envisaged as a coherent and plausible alternative theory of a market economy. This conceptual orientation brings to the fore the issues of monetary am...