A new antitrust class action lawsuit alleges that textbook publishers and on-campus college chain bookstores conspired to monopolize the textbook market, forcing students to pay higher-than-market prices for course materials.

Plaintiffs argue that publishers built the “Inclusive Access” model — a digital textbook market in collaboration with top publishers ostensibly aimed at reducing the cost of course materials — “to monopolize the market for textbooks in Inclusive Access classes and thereby raise prices, are actionable violations of the federal antitrust laws.”

Singling out the big three publishers — Cengage, Pearson and McGraw-Hill, as well as on-campus bookstore chains — the lawsuit filed in a New Jersey federal court argues that the practice is illegal under the Sherman Antitrust Act and the Clayton Antitrust Act.

View photos A University of Colorado sophomore watches as employees carry away his textbooks after selling them back to the CU bookstore inside. (Photo: Jeremy Papasso/Digital First Media/Boulder Daily Camera via Getty Images) More

“This suit by a student standing up for all of her peers against the the potential harms of Inclusive Access … and ultimately, like these, this suit could affect every student in America,” Kaitlyn Vitez, higher education campaign director for the progressive non-profit U.S. PIRG Education Fund, told Yahoo Finance. “We're talking about a really huge segment of America's college population.”

The textbook market — which Vitez previously called a “broken marketplace” — has been dominated for decades by a few dominant publishers that leverage deep expertise in educational materials and relationships with universities. Vitez said that the lawsuit “has the potential to really shake up the publishers’ plans to eliminate the used textbook market.”

Textbooks - Filed Complaint by Aarthi on Scribd

‘Pearson stands by the Inclusive Access model’

While the amount of money an average college student spends on textbooks has declined slightly in recent years, the lawsuit contends that the publishers’ introduction of an online model has resulted in the loss of choice.

“Inclusive Access increases students’ costs and eliminates their choices in order to increase the profits of textbook publishers and on-campus college bookstore retail chains,” the lawsuit asserts.

In response to this story, textbook publishers defended the model.

“We believe Inclusive Access benefits students by making our first-class instructional materials available to them at below competitive rates, and we believe the lawsuit has no factual or legal merit,” a McGraw-Hill spokesperson said in a statement.

A Pearson spokesperson said: “Pearson is aware of this lawsuit and is reviewing the complaint. Pearson stands by the Inclusive Access model, which offers real benefits to students, instructors and institutions.”

“Cengage is prepared to defend vigorously against these allegations,” a spokesperson from the company stated. “Cengage has been and remains a forceful advocate for student and textbook affordability.”

View photos A student stands in from of books in a campus bookstore. (Photo by: Jeff Greenberg/Universal Images Group via Getty Images) More

‘That’s gas money’

Online textbooks in the “Inclusive Access” model sometimes come with access codes to quizzes, homework assignments, and even exams. Some of the prices of the textbooks can run pretty steep, and in many cases, students can’t rely on a used textbook at cheaper rates.