I think I've seen similar threads already.
Yes it can, but it depends how you understand improvement. If you expect it to make the country richer, better situated economically, compared to the rest of the world, I doubt it. Though I think it can improve the distribution of wealth among the people, which in a way improves the economy.
Bitcoin has a unique feature that allows people to work outside the system, which is very important in poor and corrupt countries. You can sell your knowledge and time in the Internet and receive instant payments from all around the world, without the need to pay transfer fees and without the need for permits from your local government. You're also not pressured by prices of your local competition and can keep your business in relative secrecy.