The Early Decision Advantage Is Four to One. A Federal Judge Just Ordered 32 Colleges to Explain It.
Vanderbilt published the arithmetic itself, in two blog posts eight weeks apart.
On February 19, the admissions office reported that 7,727 students applied Early Decision for the Class of 2030 and 11.9 percent got in. On April 7, it reported that 48,720 students applied Regular Decision and 1,382 were admitted, a rate of 2.8 percent.
Same university. Same class. Four and a quarter times the odds, depending on which box you checked in November.
Vanderbilt is one of 32 selective colleges that spent last week absorbing a ruling from Judge Angel Kelley of the U.S. District Court for the District of Massachusetts. On August 7, Kelley denied the colleges' motion to dismiss an antitrust suit filed in August 2025 by current and former students at Wesleyan, Vassar, and Washington University in St. Louis. The case proceeds to discovery. She did dismiss the claims against Common App, Scoir, and the Consortium on Financing Higher Education, finding the complaint had not alleged evidence that those three joined any conspiracy.
What is actually being alleged
The alleged restraint is coordination: competing colleges agreeing to honor one another's claims on students instead of independently deciding whether to recruit them.
The suit does not argue that binding early admission should be illegal. Dan McCuaig, the attorney for the plaintiffs, told the court his side was not challenging any school's right to structure its own application process , so long as it acts alone. What schools cannot do under the Sherman Act, he argued, is agree with competitors to honor one another's claims on students.
That agreement is the heart of the case. The colleges, according to the complaint, have committed not to admit or recruit a student already accepted somewhere else under Early Decision. Kelley singled out that agreement in her ruling. A student admitted in December holds one offer and one aid package, with no second bid coming, because the other schools have agreed to stand down.
The colleges say the commitment was never enforceable to begin with. Doug Litvack, representing Rice and Dartmouth, described Early Decision at oral argument in May as totally voluntary and just a promise to attend, a promise students can break. He also noted that applicants seeking aid are not expected to pull their other applications until an award letter arrives.
Both things appear to be true, and the plaintiffs agree with the second one. Their argument is that colleges know it and let students believe otherwise. The Early Decision agreement is a document students sign, often alongside a parent and a counselor , formatted to look like a contract. A seventeen-year-old reading it does not experience it as a preference.
The four-to-one number is real and it is not what it looks like
This simulator does not estimate Vanderbilt's causal Early Decision advantage. It demonstrates why the raw 4.25× admit-rate ratio cannot, by itself, answer the causal question.
Vanderbilt's gap is not unusual. Northwestern told the Daily Northwestern that Early Decision applicants to the Class of 2029 were admitted at 20 percent against 5.3 percent in the regular round, a ratio just under four to one. Emory admitted 29 percent of its Early Decision I pool for the Class of 2030 while its overall rate hit a record low of 12.3 percent.
But a ratio of admit rates is not a measure of advantage, because the two pools are not the same people. Recruited athletes land in the early round. So do QuestBridge matches: Emory admitted 57 of them in December, before the regular round opened. Legacy applicants, students at high schools with full-time college counselors, and anyone whose family settled the money question by October all cluster early. Some of that 11.9 percent would have been 11.9 percent in April too.
Christopher Avery and Jonathan Levin tried to isolate the real effect in a 2010 paper in the American Economic Review. Controlling for what colleges could observe about applicants, they found that applying early was associated with a 20 to 30 percentage point rise in the probability of admission, which they estimated as worth roughly 100 additional SAT points. That remains the most careful published estimate of the causal advantage. It also rests on survey data from the 1999 through 2000 application cycle, gathered from students at 510 high schools, and no one has replicated it on a pool that submits 54,000 applications and mostly withholds test scores.
Which is the point of discovery. The colleges hold the internal data. Until now nobody outside those offices has been able to separate the structural advantage from the composition of the pool.
A number that cuts the other way
Low-income and first-generation students are not absent from Early Decision. The access question is also about who can confidently determine affordability before committing.
The standard critique holds that Early Decision is a subsidy for families who can afford not to compare aid offers. Vanderbilt's own published profiles complicate it. Among Class of 2030 Early Decision admits, 20.9 percent were first-generation students. Among Regular Decision admits, 15.1 percent were. Students from rural areas and small towns came in at 10.2 percent early and 10.1 percent regular.
Vanderbilt guarantees to meet full demonstrated need without loans, and it recruits hard into the early round through QuestBridge and other pipelines. So the equity problem with Early Decision is not that low-income students never use it. It is that using it well requires knowing in advance what a school will cost, which is a function of counseling and of how clearly the school publishes its aid formula.
What this means for a senior in August
Northwestern example described in the article.
The article's rule is simple: do not use a binding round to discover whether the price works.
Complete the decision record before treating the binding application as settled.
Early Decision I deadlines land November 1 at most of these schools and November 2 at WashU. The decision to make in the next ten weeks is a financial one.
Run the net price calculator on every school under consideration, with a parent and actual tax documents, before committing to a binding round. A binding application is defensible when the calculator output is a number your family can pay. It is a bad trade when the plan is to apply early and hope the award letter is generous, because that hope is exactly the leverage the lawsuit says these schools have agreed to remove.
There is a release valve, and colleges are candid about it: a student whose aid package makes attendance impossible can be let out of the commitment. The judgment about whether the package qualifies belongs to the college, not the family.
Look also at how much of the class is already gone. Northwestern fills roughly 55 percent of its seats through Early Decision, using a pool that makes up about 11 percent of its applicants. Roughly 1,200 early admits produce more enrolled freshmen than the 2,500 or so regular admits do, because binding offers convert and April offers do not. A regular application at a school like that competes for a minority of the remaining seats.
None of that argues against applying early to a school you have researched and can afford. It argues for knowing what the commitment costs before you sign it. The colleges have spent a year telling a federal judge that Early Decision is voluntary and breakable. Students deciding in the next ten weeks deserve to hear that from admissions offices with the same clarity the schools' lawyers used in court.
Know the school.
Know the numbers.
Know the commitment.
