What is the impact of bitcoin in a country's financial stability?
The impact will be positive, IMO.
Consider Japan's stand on embracing bitcoin and the blockchain technology.
Even if they are already a progressive country, they still adopt bitcoin because they know it will push their country's economy even further.
I think the impact of bitcoin will be different in each country, in Japan the effects are going to be very positive because they have decided to take a step forward and be one of the countries with the biggest adoption of bitcoin around the world, but I think that in other countries there will be a negative impact, why? Because money will begin to flow outside of those countries to go to countries that are accepting bitcoins like Japan.