Andranik Semovich Tangian (Melik-Tangyan) (Russian: Андраник Семович Тангян (Мелик-Тангян)); born March 29, 1952) is a Soviet Armenian-German mathematician, political economist and music theorist. Tangian is known for the mathematical theory of democracy, the Third Vote election method, criticism of flexicurity employment strategy and models of artificial perception of music. He is professor of the Institute for Economics (ECON) of the Karlsruhe Institute of Technology.