I don't think it helps the global economy directly, but indirectly, by providing support to its underlying technology, which is Blockchain, it'll help by promoting transparency and removing unnecessary links in the business chains, which will help get rid of red tape and the rest of bloodsuckers. So, it can help, in its own way, you know

I think bitcoin helps our economy with those who invest in it and earn income. So bitcoin can help the world economy by introducing it to the world currency, and besides it is now implemented but not around the world