Having gone through an entrepreneurially oriented courseload when I was in b-school and having run a VC-backed startup post-MBA for a while, here's my view.
Running an entrepreneurial venture takes a combination of brains, heart, guts and luck.
You need the brains to absorb the knowledge and know-how necessary to avoid making stupid decisions (or at least make the most informed decisions and actions given the limited info you have).
You need the heart to have passion for what it is you're selling - you can't just sleepwalk like you can in a regular job sometimes.
You also need the guts to get through the inevitable tough times. Every venture goes through times where it's on the verge of going belly up, when things just look BAD. Like anything, there's good and bad times, but in an entrepreneurial venture it's magnified. You need the thick skin to get through crap that happens.
And finally, you need luck - being at the right place at the right time. Selling the right product at the right time. You can't really time this. Your product happens to meet customer demand when it happens to be really growing - if you're an industry pioneer, it's not about being first (because chances are the first guy is too early), but being early while learning from the first or second guy's mistakes. And not being too late in the game either.
Anyhow, the MBA only gives you knowledge. It can't give you heart, guts or luck. Knowledge is important, but it's not any more important than the other three.
Having said that, going to b-school can be valuable if you don't have much of a business background. B-schools will talk about "entrepreneurship" programs but in reality, it's really just a repurposed general management program. In other words, so long as you go to a good school that is able to teach you the core business disciplines of finance, accounting, marketing, operations, strategy, organizational behavior and so forth in an integrated manner, that's what really matters. Because business is business - the core knowledge you need is the same whether you're working for a large company or a small one. Big or small company, the interaction between assets, liabilities and equity on a balance sheet don't change - accounting is accounting. Fundamental marketing frameworks and principles (price, place, product and promotion; market research, competitor analysis, etc.) are the same. It's the application of such knowledge and the circumstances that are different - and in my view, that is something you can't really teach. How you apply such knowledge is something every entrepreneur learns on their own. In entrepreneurship oriented courses, the big wrinkle is that the examples or case studies used are focused on startups -- and you'll oftentimes get entrepreneurs themselves come to class to run cases or as guest lecturers about their own experiences and lessons learned. That can be valuable, but in my view not absolutely necessary so long as you have the core knowledge of a strong general management curriculum.
However, having been through both the educational aspect and the actual experience of it, the knowledge can help prepare you, but you'll learn the most by actually doing it.
Alex Chu
alex@mbaapply.com
www.mbaapply.com
http://mbaapply.blogspot.com