<p>Among Stony Brook, Brandeis, and Penn State, I’d go with the fact Penn State is the #1 school for recruiters and they’re also #1 for their alumni network. So it’d be the best for job prospects.
Admission to MBA programs will primarily depend on what you do (internships, then 2-5 years of work - you cannot get into an accredited MBA program without work experience).
Wisconsin’s Econ major with Math emphasis looks very good for someone who wants more of and the university has an excellent reputation, for for career and for academics. UMaryland is now connected to DC which is a boon, too. Northeastern is about the same price as Penn State and is good for econ&math, with the co-op system excellent for job prospects - but it’s very hard to get into!
Can you apply to 3 or 4 of them and see which one you can get into (because it’s far from being easy!)</p>