Nowadays the world is the witness of en acceleration in the economic regional union -either in craes of free trade or in custom association- as an intermediary step to the consolidation of the economical globalization. In the Ainerican spheres. The United Stares showed en ancient interest in this sense. The history of the economical union emerges the decada of 1950 with the specific case of Centroamerica which has a common political past. This experience has been recently reactivated after the "last (...) decade". The structural plans of adjustment and the politics o market liberation have been imposed in countries such as Nicaragua, suffered from economic conditions extremely weakmakins worse the population's life conditions. Officers of politics and economy of the country express their view about some aspects of this process. (shrink)