<p>So both programs are highly theoretical and overlap a lot. (There is even a math with specialization in economics if you find yourself so inclined.) The econ department has chosen to put a lot of math into the econ classes as they (1) expect you to have learned in, and thus, you should use it and (2) if you decide to go to grad school for econ, you will need to know how to do complex math.</p>
<p>I have found the math department to be great – especially in the honors classes (better professors and TAs). They offer a wide variety of sections (for calc 130’s, 150’s, 160’s and an IBL version of 160; for analysis regular, IBL, accelerated, and honors; etc. etc. etc). Econ is more structured in that they don’t have the different sections so you may end up finding yourself extremely confused or bored depending on what you are comfortable with.</p>