If the world uses a single currency, will the economy be more stable?
This is a very interesting question. The sovereign nations issue their own currencies and are taken for granted by many people, but few consider whether this is the economically optimal option.
It would be great and more stable i think. But i dont think super power nation like amerika would like accept to use single currency in world wide. The reasons is cause they want to superior and they wanted to control all economy system.