<p>You don’t really need to take any specific business classes before the MBA. The one class that they really stress taking is calculus (which I haven’t used in b-school once, other than doing a very simple derivative). I only took one econ class as an undergrad.</p>
<p>You don’t have to have a “business” type of job, although most people do. There are people in my class who were teachers, architects, soldiers, professional athletes, and other “non-traditional” careers. As long as the job you have allows you to grow as a leader, it should be fine.</p>
<p>But if you want to take finance or business classes for personal enrichment, then that’s fine.</p>
<p>And you don’t need any business specific classes to do well on the GMAT.</p>