Nikolai Kondratiev

Nikolai Kondratiev
Born	(1892-03-04)4 March 1892 Galuevskaya, Kostroma Governorate, Russian Empire
Died	17 September 1938(1938-09-17) (aged 46) Kommunarka shooting ground, Moscow Oblast, USSR
Nationality	Russian
Academic career
Field	Macroeconomics
Institution	Institute of Conjuncture
School or tradition	Marxian economics
Alma mater	University of St. Petersburg
Influences	Mikhail Tugan-Baranovsky Alexander Sergeyevich Lappo-Danilevsky
Contributions	Kondratiev waves

Nikolai Dmitriyevich Kondratiev (/kɒnˈdrɑːtiɛv/;^[1] also Kondratieff; Russian: Никола́й Дми́триевич Кондра́тьев; 4 March 1892 – 17 September 1938) was a Russian Soviet economist and proponent of the New Economic Policy (NEP) best known for the business cycle theory known as Kondratiev waves.

Kondratiev became an early leading figure of Soviet economics and promoted the NEP's system of small private free market enterprises in the Soviet Union. Kondratiev's theory that Western capitalist economies have long term (50-to-60-year) cycles of boom followed by depression gained recognition inside and outside the Soviet Union.^[2]

Kondratiev was condemned and imprisoned in 1930, but continued to work until his execution during the Great Purge in 1938. Some of his work was published, for the first time, posthumously.