In my opinion it might be better decentralized because in each country have its own authority over their finances if centralized there will be governing the finances of the State over other countries, perhaps with the existing system is good only I think the existence of bitcoin amid advances in technology good in facilitation so that no negative news stories about the existence of bitcoin and bitcoin can also stimulate the economy with the help of investors so much development of technology-based projects so that's it according to my perspective.