Denzera

MBA programs will often offer financial aid to students they really want, and sometimes this is negotiable if you're a hot applicant. There is also the opportunity to TA a number of courses - typically, undergrad courses your first year, MBA courses your 2nd year. These will pay, often in the form of tuition remission rather than income, so that it's untaxed (which is like a free 30% raise!). I'm not aware of any "Assistantships" at any of the top MBA programs to which I applied. Those arrangements are more typically the domain of PhD students.

I second that. Any decent MBA program worth attending will strongly prefer 3-4 years of work experience. And even with those who take people out of undergrad, those students find that employers treat them more at the Analyst level (i.e. as if they were just leaving undergrad) than the Associate level (where MBAs with a couple years' experience tend to get hired into). The exceptions - and there are a half-dozen people who go to harvard business school every year straight out of undergrad - are usually unbelievable-level rockstars. e.g., started a technology business while in college and sold it for millions, took over running the family business at age 14 while still going to school and built it successfully all through college, etc. If you're in that category, you're not asking this question on a message board. Everyone else? Go get a job and show employers that you know how to deliver what they need.