Drawing on a wealth of archival material, including personal correspondence and diaries, Robert Leonard tells the fascinating story of the creation of game theory by Hungarian Jewish mathematician John von Neumann and Austrian economist Oskar Morgenstern. Game theory first emerged amid discussions of the psychology and mathematics of chess in Germany and fin-de-si?cle Austro-Hungary. In the 1930s, on the cusp of anti-Semitism and political upheaval,...