Three authors filed a complaint in U.S. district court asserting that McGraw Hill is in breach of contract for a recent change to royalty calculations for products sold on its Connect digital platform. The complaint, Flynn v. McGraw Hill LLC, 21-cv-00614, U.S. District Court, Southern District of New York (Manhattan), was filed on January 22 by Sean Flynn, Associate Professor of Economics, Scripps College; co-author of Economics: Principles, Problems, and Policies. (Now in 22nd edition.), Dean Kardan, Prof Economics and Finance, Kellogg School of Management, Northwestern U; co-author three textbooks: Economics, Microeconomics, and Macroeconomics, and Jonathan Morduch Professor of Public Policy and Economics at Wagner Graduate School of Public Service in NYU, co-author with Dean Kardan of the above three books.