Stanislav Strumilin

Stanislav Gustavovich Strumilin (Strumillo-Petrashkevich) (; 29 January 1877, Dashkovtsy, Podolia Governorate – 25 January 1974, Moscow) was a Soviet economist and statistician. He played a leading role in the analysis of the planned economy of the Soviet type, including modeling, development of the five year plans and calculation of national income. His particular contributions include the "Strumilin index", a measure of labor productivity, and the "''norm'' coefficient", relating to analysis of investment activity. Provided by Wikipedia