Power and Regionalism in Latin America In" Power and Regionalism in Latin America: The Politics of MERCOSUR, " Laura Gomez-Mera examines the erratic patterns of regional economic cooperation in the Southern Common Market (MERCOSUR), a political-economic agreement among Argentina, Brazil, Paraguay, Uruguay, and, recently, Venezuela that comprises the world"s fourth-largest regional trade bloc. Despite a promising start in the early 1990... Full description