EN
In this article the attention is concentrating on one thing of TOOW aspects and the new endogenous approach which analysis of the commercial interrelation of countries of shared monetary area. According to McKinnon (1963) the top stair of opening economies of running states is an essential criterion of OOW creating. And so countries can create this area about the great participation of the foreign trade in the national product. Economy for them more opened the all the greater significance in shaping prices in the country has the currency exchange rate. On this base an attempt of the reply to the question will be taken whether monetary integration of Poland with the euro zone can contribute considerably to the height of the trade exchange between Poland and remaining members of the euro zone.