Most families build a college list around fit, rankings, and gut feeling, then discover the financial implications in April of senior year. There is a framework that prevents this, and a free public dataset that lets any family apply it in twenty minutes.

The Selingo framework

Jeff Selingo, who spent a year embedded in the admissions offices at Emory, Davidson and the University of Washington for his book Who Gets In and Why, divides four-year colleges into two groups. Sellers are overwhelmed with applications, many from top students, and do not need to discount tuition to fill their classes. Buyers have to work to recruit students and use merit aid as a discount to fill their seats.

The crucial number is scale. Sellers are fewer than 5% of four-year colleges. The other 95% are buyers. The schools families talk about are mostly sellers. The schools that will fight to enroll your student are mostly buyers.

How to tell them apart

Selingo publishes rules of thumb that are worth remembering:

Admit rate: sellers admit fewer than 20% of applicants; buyers admit more than 70%. The average across all colleges is around 67%, much closer to the buyer end because buyers are most of the market.
Yield: roughly 45% of students admitted to a seller enroll; at a buyer it is closer to 25%.
Merit share: sellers give less than 10% of their aid as merit, often less than 7%. Buyers give up to a third of their aid as merit, because that merit money is the discount that fills their seats.

Buyers are not lower-quality schools. Many provide an excellent undergraduate education. They simply have a weaker position in the competition for applications, and that is a different thing.

The four numbers

The Common Data Set, which almost every American college publishes each year, contains the four numbers that tell you which category a school is in: admit rate, yield rate, the percentage of students receiving non-need merit aid, and the average merit award per recipient. Search the school’s name and “common data set” and the PDF is usually in the first few results. The school’s branding and reputation are noise. The four numbers are the signal.

Selingo also maintains a published Buyers and Sellers list on his website covering more than 1,000 colleges. It is a useful first cut, and you can then confirm individual schools from their own Common Data Sets.

Two situations, two different lists

Full-pay families, those who will not qualify for need-based aid, get better net prices at buyer schools, where merit aid is genuinely available. A seller has no reason to discount; a buyer does.

Need-based families face a subtler picture. Many sellers are also the most generous need-based aid providers in the country, because they have the endowment to be. A family that qualifies for substantial need-based aid may get a better net price at a seller than at a buyer, because the seller’s need-based package outweighs the buyer’s merit discount. The same college list can be right for one situation and wrong for the other, so the first move is deciding which situation your family is actually in.

The most common avoidable mistake

Building a list weighted entirely toward sellers, then discovering in April that your family is full-pay at every school with no merit money to fall back on. Or building a list weighted toward buyers when need-based aid at a seller would have produced a better outcome.

What this means for families building a list

Pull the Common Data Set for every school on the draft list. Run a Net Price Calculator at two or three schools to confirm which financial situation your family is actually in. Re-weight the list based on what the numbers say, not on rankings or familiarity. The four numbers are public, the framework is free, and the work takes an afternoon. The financial difference over four years can run into six figures.

Buyers and Sellers: The Four Numbers That Decide the List