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.
I am not sure it will happens. There is many countries with own currency in the word.every country want to keep their currency. I think a single currency in the word is impossible.
Yes, powerful economies will never let that happen. I think the currency of a country being strong is an indication of how influential that country is today. This is clearly reflected in how dollar is stronger in comparison to most of the currencies by 40-50 times.