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Named in part after Shafer, the Dempster-Shafer theory is known worldwide in the statistics and computer science disciplines

Dr. Glenn Shafer has a distinction few share: a mathematical theory is named for him. He is the "Shafer" in the Dempster-Shafer theory, as well as Board of Governors Professor of Accounting and Information Systems at the Rutgers Business School - Newark and New Brunswick (RBS). In the 1976 book, A Mathematical Theory of Evidence, Shafer advanced a new theory of probability judgment, the Dempster-Shafer theory, based on work by his teacher, Arthur Dempster. The Dempster-Shafer theory is well-known in the statistics and computer science disciplines, especially in the field of artificial intelligence.

With another colleague, Vladimir Vovk, Shafer initiated the game-theoretic framework for probability, and is writing a second edition of their book, Probability and Finance: It's Only a Game! The third international workshop on game-theoretic probability was held at Royal Holloway University of London in June 2010.

Shafer, who came to Rutgers in 1992, served as dean of RBS from 2011-2014. Shafer also has taught a variety of courses related to his research interests in accounting and information systems, including stochastic processes and game theory in the Rutgers Business School doctoral program. His contributions to the university are many and include serving on two committees that played an instrumental role in reorganizing the doctorate in management and master of business administration curricula.

In 2009, Shafer and his colleague Arthur Dempster were awarded honorary doctorates in economics by the University of Economics, Prague.

A native of Kansas, Shafer resides in Newark with his wife, Nell Irvin Painter, an artist and professor emerita of history at Princeton University.