哈佛大学经济学教授SUSAN ATHEY对申请经济学博士项目的一些建议

Advice for Applying to Grad School in Economics

Choosing classes

• Graduate schools care much more about what hard classes you've taken and how you've done in them than about overall GPA.
• If you have taken difficult classes its probably a good idea to point this out in your application essay because schools might not know what the math classes are, which economics classes are the advanced ones, etc.  
• Real analysis is an especially important class because it tends to be demanding everywhere, and forces you to do logical and formal proofs.  Get a good grade in this class.
• Taking some graduate classes can be a good thing, but be prepared.  You will be at a disadvantage since the grad students will all have study groups.  Try to join a study group and devote serious time to any graduate classes you take.  More and more applicants are taking graduate classes.
• Students from top universities who have the bare minimum coursework (an undergraduate major, no graduate economics or math classes, and only basic undergraduate math classes) will need something really outstanding -- like a thesis that is publishable in a top economics field journal--to get fellowships at the top two or three graduate programs.  Typically the strongest applicants have some distinguishing feature, like scoring near the top of a graduate class at a top PhD program, very strong math (e.g. graduate level real analysis and topology), or an outstanding thesis or coauthored research.
• Undergraduate classes at most U.S. universities are much easier than graduate classes.  To be a strong applicant you should be getting mostly or all As in undergraduate economics classes--with grade inflation even A-'s are not going to help you.  Some poor grades your freshman year won't disqualify you though, doing really well in very advanced classes will more than compensate.

Recommendation letters

• Recommendations which are not from economists have very little value.  Recommendations from economists who have contacts at the schools you are applying to are most useful.  However, one letter from someone you have worked for after undergrad may be useful to document your work ethic, maturity, etc.
• Get recommendations from people who know you well. 
• Corollary: Get to know some professors well. Professors will be very excited that you want to get a Ph.D. in economics.  Don't be afraid to approach them.  Listen to their advice.
• Give professors every possible opportunity to say they don't feel comfortable recommending you to the school you're applying to. If they express any hesitation don't have them send it. One bad letter hurts much more than any good letters can help.  A letter that mentions a poor work ethic, or basically almost any substantive negative, probably spells death at the best programs.
• It's fine to have a letter from someone you worked for even if they didn't teach you in a class.
• If you do not have relationships with economics professors (e.g. you are a math major) or if you attend a college or university without faculty that have connections at the top Ph.D. programs, you still have a good chance of admission if the rest of your application is stellar.  Just be aware that objective criteria such as GRE scores, grades in hard math classes, and essays will receive more weight, and make sure that you do everything you can to help the admissions committee evaluate your record.
• Your professors' letters will be most effective if they compare you specifically to other students in top graduate schools.  This is especially important if your professors do not have personal relationships with the faculty at the top programs.  The admissions committee needs to be able to calibrate the content of the letter.  To get into Harvard or MIT, the letter probably needs to be pretty explicit that the student is comparable to other students who have been to those programs and succeeded.  For foreign students, where transcripts are particularly hard to evaluate, these comparative statements carry a lot of weight.  The comparative statements should be backed up with reasoning--such as comparing analytic abilities, coursework, the quality of the thesis, etc.  You can tell your recommender about this site since you don't want to tell them what to do!

Application Essays

• On your graduate school application its very important to write an essay saying what kinds of areas of economics you're interested in, what questions you think are interesting, what papers you've read that you've liked etc. Be as specific as possible. It may be helpful to discuss your thesis or research assistant work.  Its not necessary to have a specific thesis proposal, and odds are if you try to pretend you have one when you really don't you'll come off as sounding naive which is a bad thing. Mostly schools just read these to see what field you're interested in and to get a sense whether you have any idea what you're getting yourself into.  You should therefore try to talk intelligently about your topic of interest to show that you understand something about what research in that field would be like.
• Get someone to read your essays, preferably an advanced graduate student or a faculty member.
• Application essays for NSF fellowships have typically been judged differently. They seem to want a specific thesis proposal and value clear brief surveys of the existing literature, a clear statement of what you'd like to add to this, a discussion of datasets you might want to use etc. They don't like vague statements about liking economics, and don't seem to mind that people aren't really going to do what they say.

NSF Fellowships 

• Every student applying to graduate school should apply for an NSF fellowship. Winning one gives you a much better financial deal than any school will offer. Even if you don't win just the fact that you applied will increase the probability of your being accepted by graduate schools.
• Don't be surprised to find that the fellowships are only weakly influenced by grades and GRE scores. The essays matter a lot.
• Even if its questionable whether your eligible go ahead and apply. The rules seem to change a lot.
• Apply from your home address if you attend college in states like Massachusetts or California.  There is some allocation by home state, since this is a federal program.

Application timing

• As long as its in by the deadline it doesn't matter. It is an advantage to have your folder be complete very soon after the deadline, which means  making sure your recommenders get their letters in.

GRE Scores

• Though the test is not necessarily a good predictor of success, it matters a lot (especially the quantitative portion). Studying for the GRE dramatically increases your scores so you should definitely practice.
• The economics GRE doesn't usually count for much, but it does give a chance for people who haven't taken much economics to make a positive impression.

Financial statements

• Its hard to generalize on what you should do on these. At Harvard, for example, its always best to make it seem like you have money because their administration has a rule that they can't accept people without offering them enough money to come. As a result they often reject people who at the end of the process they would have preferred to people they give money to. At other schools, if you seem to have a lot of money it may reduce the size of the fellowship offer you get. It may also, however, increase the probability of getting accepted because a school with a few partial fellowships to offer will give them only to people who seem to have the resources to accept them.

Where to Apply

• If you are well-qualified, you should apply to all of the top-ranked economics departments (e.g. MIT, Harvard, Stanford, Princeton, Chicago, Yale, Berkeley), and several backup schools, depending on the strength of your record.  You should definitely seek advice from faculty members on this. 
• If you have a somewhat weaker record, there are lots of good graduate programs out there, but you need to shop more carefully for schools that have well-known advisors or have recently been investing a lot in graduate students.  Some middle-ranked schools (like recently Pennsylvania State) aggressively recruit prospective students and have placed graduating PhD students in top 5 schools by investing heavily in the students.  You need to do a lot of homework, and talk to lots of faculty about good places to apply.  Information about good places to go is likely to be dispersed.
• Don't overlook the small but prestigious PhD programs at business schools: Stanford GSB has a placement record that rivals the top economics departments, and Harvard and Northwestern also have programs worth looking into.  These programs typically offer more individual attention and have more generous funding.
• The applicant pool seems to be getting more sophisticated and well prepared all the time, so if you have something like a more "typical" undergraduate background (undergraduate major, a couple of math classes, a thesis, mostly As), you need to cast a fairly wide net.  If you have more than a couple of B's you need to cast wider still.

Visits and Contacts at Graduate Schools

• With rare exceptions, you SHOULD NOT initiate contact with faculty members at schools you are applying to before the admissions decisions.  You will seem like a pest and like someone who doesn't understand the system.  After you are admitted there will be plenty of opportunities to meet faculty.  If you feel like you have an exceptional case for contacting a faculty member at another school, seek the advice of your advisor first.
• After admission you should visit your top choices if at all possible.  You will learn an enormous amount then, swamping what you have managed to figure out before then.
• Talk to the students to learn how often they meet with their advisors, who is really accessible, and how the morale is among students.  Some faculty do a lot of aggressive recruiting but don't spend a lot of time with their students later.  The current students can tell you how advising really works. 
• Anyone who tells you that one department is best for every student is not being very thoughtful.  You need to determine whether a department feels right to you, and whether you feel like there are a set of potential advisors for you.  Your advisor will have enormous power over your life.  You need to be comfortable.  Different departments have different strengths, cultures, and styles.  Some fields within departments have very strong subcultures and impressive placement records.  Learn about those.
• Find out about the placement records of the programs. Don't just find out about the top 5 students--find out about how number 10 or 15 in a class did, and whether they were happy.  Even if you are quite certain you will be a star, it's possible you won't be the very best, and even if you are, it will be a lot more fun if your classmates aren't unemployed, despondent and neglected.
• Don't get too caught up in overall stereotypes. Faculty and students all get very enthusiastic about grad student recruiting and tend to over-emphasize differences among programs.  There are many more similarities than differences across top programs, and every department has fields with very different advising styles.  In the end you need to find two or three advisors and a couple of good student buddies.  A department with more outstanding faculty and students makes it more likely you will find your matches, but the subculture of your friends and advisors is far more salient to your life than the overall department.