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.

[2] As a self-taught composer, he debuted with orchestral music to the play The Last Trimester at the Moscow Central Children Theater [de] in 1977.

[14][15][16][17][18] For decision models, Tangian has developed several methods for constructing objective functions (= composite indices that embody decision-makers' preferences).

[22] Tangian's ten empirical models of flexicurity — the European policy intended to compensate the flexibilization of employment by social security measures — show that it fails to meet expectations.

[25] According to Tangian, the current rise in inequality is caused, among other things, by the increasing productivity, which enables to underpay workers in so-called "labor equivalents", maintaining nevertheless an impression of fair pay, and use the surplus profit to enrich the upper strata of the society.