Ok, I'll make a very controversial answer here and say that i think Trump helps the economy. I mean yes he sucks in politics but i think the economy he inherited from the previous administration really just happened to collapse on his term abd he's doing his best, as an entrepreneur, to prop it up. I could be wrong.
I think those people really can tell if President Trump have good or bad influence in economy is those live in USA. But we can give our opinion and my opinion about President Trump administration has good effect to their economy because you will heard from news that Trump do his best to make their country better again.
For their own country, Trump certainly has a positive influence on their country, but for the world economy, maybe not. Trump says that America first, make America great again. trump only focuses on the American economy itself, even they declare trade war with other countries. of course it is not good for the economy of other countries..