Bitcoin can improve countries economy because it will help a lot of people to earn money and the people will use those money to spend on the things that they want and those profit of the shop or the store that the people used to buy things with. Then it will boost the shop or the store's income and the tax of that store will go up too and it will help the country to have a better income which will help itself to improve its system and economy.
the past per capita income of the country's population will increase, as the once-in-income population can now increase beyond the country's national income for each month's population or regional minimum wage