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<li>Well, generally speaking your undergraduate institution doesn’t matter at all, but you’ll actually have to specify what kind of grad school. In some fields, it will make a difference. </li>
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<p>If by grad school you mean a PhD with the goal of entering an academic career, then your UG institution hardly matters at all. If you going to a teaching-oriented LAC, it may help you marginally in applying or jobs at those schools down the line, but I want to emphasize the marginally. Other than that Harvard-Harvard vs. Southeastern State Tech-Harvard makes no difference.</p>
<p>For med school/dental school, your UG will not matter, but for other professional programs there will be an impact. With law, obviously your law school is much more important than your UG institution, but law is a prestige-driven field, so having the right undergraduate school name will make a marginal difference (if and only if all else is equal). You should also keep in mind that more prestigious schools also come with better alumni networks, which you may find helpful. Again, though, the differences are small.</p>
<p>The two areas that you really will find that your undergraduate education will make a difference are business and public policy. Traditionally, people who go into MBA or MPA/MPP programs spend a few years in the workforce before going on to graduate school. A “better” UG institution will translate to a better job in those intervening years, and that will often help to set the trajectory for your career. Also, the networking potential that comes from a Harvard, Yale, or Princeton degree will help you out more in those fields.</p>
<p>In short, it depends on the field, but in all cases the graduate institution will be significantly more important.</p>
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<li>Not very. Doing well GPA-wise, impressing your professors, and doing well on the appropriate test (GRE, MCAT, LSAT) are much more significant than the name (for professional schools more than PhD programs though). Harvard v. Duke won’t make a difference. Now, if you go to a school that is known for low standards, that can really hurt, but I’m talking about something like going to Bob Jones and then trying to apply to Med School. Otherwise, the difference is small. Of course, one factor that often does matter in PhD admissions is who writes your letters. It means a whole lot more to have a letter from leading scholar X at Harvard saying “John Doe is the best student I have ever had” than to have exactly the same letter from No Name scholar Y at a less prestigious university.</li>
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