？Hegemonía o dominio norteamericanos en los inicios del siglo XXI?

in this article, the author analyzes some of the key questions to understand today's complicated international panorama. does the united states exercise at an international level, during the first decade of the 21st century, a hegemonic function or of control?; can it keep negotiating the differences and conflicts following the rules sanctioned by today's international laws?; or, on the contrary, is it necessary to adjust the rules of the game at a national and world level and modify them substantially? within this context, the author searches for the reasons that account for the loss of north american hegemony and its substitution by the control exercised at the international level. he approaches as well the economic and political role and of other countries and their impact on the international scene within the actual frames of economic and political crisis in a large part of the world.