Gaucho (currency) without any initial plans to establish a common currency. Later, in 1994, Brazil established the Brazilian real, still in use, putting an end to the frequent currency changes that took place in the country throughout the 1980s and the 1990s. On such panorama, the Gaucho plan has been virtually shelved. On 17 July 1987, in the city of Viedma (Río Negro, Argentina), President Raúl Alfonsín of Argentina and President José Sarney of Brazil signed Protocol Number 20 which stated the following: Considering: Viedma, 17 July 1987 Gaucho (currency) The Gaucho was the name of a currency intended to be used
World currency a single world currency is unnecessary, because the U.S. dollar is providing many of the benefits of a world currency while avoiding some of the costs. If the world does not form an optimum currency area, then it would be economically inefficient for the world to share one currency. In the present world, nations are not able to work together closely enough to be able to produce and support a common currency. There has to be a high level of trust between different countries before a true world currency could be created. A world currency might even undermine national sovereignty