Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Why would a country want to use the currency of some other country? 
This is more of an economics question than personal finance. That said, I already started writing an answer before I noticed, so here are a few points. I'll leave it open for others to expand the list. Advantages Disadvantages Advantages Disadvantages The flip-side to the argument that more users means more stability is that the impact of a strong economy (on the value of the currency) is diluted somewhat by all the other users. Indeed, if adopted by another country with similar or greater GDP, that economy could end up becoming the primary driver of the currency's value.  It may be harder to control counterfeiting. Perhaps not in the issuing country itself, but in foreign countries that do not adopt new bills as quickly.