Undergrad Major in Economics vs. Self-Studying for Grad School in Math

[tronter]

Lets say that one wants to major in economics for undergrad school. But he wants to obtain a PhD in math in graduate school. If he self studies math on the side, can he still get into good graduate schools?

 

[ajsingh]

I have a similar question. Can an Electrical Engineering graduate get into grad school for a PhD in physics?

 

[Younglearner]

I have the same question as ajsingh, but how about materials or aerospace engineering?

 

[cristo]

It would depend on what specifically you've studied in your undergrad days, and what field of physics you wish to enter into. I don't think it's that common for an engineering graduate to switch to physics, but is more common the other way around.

For the maths/economics question, again it depends upon how much maths you've studied, and what field you wish to enter into. I think your chances are greater if you wanted to go into applied maths or stats rather than pure, though.