@Grant731 Congratulations!! You will absolutely love Vanderbilt and Nashville!
Since you have similar interests to my eldest, you might want to consider a variation on her path.
She is an Econ Major, Psychology Minor, and Business Minor at Vanderbilt.
The business courses are taught by the MBA professors at the Owen Graduate School, not TAs, nor undergrad profs.
As a sophomore, one of her 1st semester MBA professors asked her to be his TA for the same course he taught the next semester. The Vandy world will just open up for you.
She liked her first Econ professor so much, she followed him to his Maymester course in London. Loved it!
Perhaps, you can choose between your favorite two: Econ and Math and then add on Business and something else you desire. You have time to test the waters for many paths.
Enjoy!