The Open Markets Institute led a coalition of public interest groups and academics in demanding the Department of Justice block the proposed merger of Cengage and McGraw-Hill. If approved, the merger would create the second-largest U.S. provider of textbooks and higher-education materials after Pearson, with $3.16 billion in annual revenue.

Signatories to the letter include the Economic Policy Institute, Institute for Local Self-Reliance, Open MIC, Public Citizen, Public Knowledge, and the U.S. Public Interest Research Group. Individual signatories include Robert H. Lande, Venable Professor of Law, University of Baltimore School of Law, Marshall Steinbaum, Assistant Professor of Economics, University of Utah, and Spencer Weber Waller, John Paul Stevens Chair in Competition Law, Loyola University Chicago School of Law.

Read the full letter to the DOJ here.