The issue of the exchange rate models variability

The article gives an overview of various exchange rate models. It is revealed, that in the historical context the necessity of developing new class of models, accordant to the prevailing scientific concept. The theory of optimum currency areas appears to be a promising direction for further research; as for the institutional research of the exchange rate, the promising areas are the economic regimology and game theory. It is noted, that the exchange rate shows quantum mechanical nature.