I don't want to be a professor - it seems like a life of battling with corrupt editors in order to get narrow, obscure, and unimportant research published in decent journals.
I want to have a real impact in the world - I think that by working at an institution with real power (IMF/WB) I can learn a lot about international macroeconomics and development (and possibly come up with some idea that will change the way we practice those two things).
Do I need an economics PhD to do this? I'm great at math and I've seen lots of obscure and uninteresting dissertations so I think I could if I needed to.
If I don't, then what are the best paths to take? If I got a job at the IMF and then later wanted to get a PhD would that not be possible? How hard is it to get a job at these places?
Any insight into this is appreciated.