Bitcoin opens many doors of new markets, which would affect the economy of a country, the reason why there are some countries who don't like bitcoin because cryptocurrency controlled by no one and because they don't get taxes. But if governments open there eyes and use bitcoin in its positive ways as possible you would be shocked that the third world countries who opens their gates on bitcoin will become one of the best countries we have ever seen.
bitcoin is only a currency, so it all depends on market players if a country wants to use bitcoin in their transaction system, of course it will be very influential but if the country does not want to use blockchain technology in their economic system, I think the country is losing because there are many advantages in the eyes of the state, crypto can be used for all international transactions, so that bitcoin can affect the economy of a country depending on it.