A global currency reset or revaluation is a new currency standard adopted simultaneously by all of the countries in the world. One of these revaluations took place after World War II when nations agreed to adopt an international gold standard attached to the U.S. dollar.
Following the financial crisis of the late 2000s, some economists called for a new global currency revaluation. However, there are several large obstacles standing in the way of such an event, such as the huge amount of cooperation between nations that would be necessary to put it in motion. As of 2015, there is no global currency reset imminent, but there is a strong possibility that one may occur at some point in the future.