Need help deciding on a major?

I'm still pretty undecided with what I actually want to major in it seems to change weekly but the one obvious thing that sticks with me is I want to make good money, that being said who doesn't?

Lately, I've been thinking about business degrees. I really like the idea of managing a business, starting my own business and I also really like the idea of negotiating for a business and stocks really interest me. I just don't know if something like this would fall under a general MBA, or if it would be a specialized degree like marketing or something like that?

Another big concern of mine is I here that business is a flooded market where a lot of people get a degree in that field and a degree could be useless. I don't know how true this is but I would appreciate it if someone could shed some light on that for me.

I appreciate any feedback, info, and help.

-Thanks