According to the report of Goldman Sachs, Bitcoin and other crypto-currencies can be a good alternative to the national currency for countries with an unstable economy.
Analysts at Goldman Sachs Zack Pandle and Charles Himmelberg said that digital currencies and, in particular, Bitcoin, can become a viable means of payment in countries where traditional money is not sufficiently provided.
Goldman Sachs experts: crypto-currencies can help the troubled economy
Yes bitcoin is very useful for those countries who have small economy and they can use bitcoins like mining cryptocurrency in order to earn more funds for their own needs and that is the reason why japan today really likes to be the capital of cryptocurrency in their ow country.