I think bitcoin can change the economy. Bitcoin is the highest value electronic money. The bitcoin market is expanding around the world. Many companies, large corporations invest in bitcoin. Banks are considering accepting bitcoin. So bitcoin can change the economy.
But it is great reqgret that all countries are not accepting bitcoin as legal currency. There are many countries where bitcoin is illegal currency. As bitcoin is the future money and it has a lot of sector so it is sure that bitcoin can change the economy.