An economic theory of the Soviet economist Kondratieff stating that the economies of the western world are susceptible to major up-and-down "supercycles" lasting 50 to 60 years.
KONDRATIEFF WAVE
Meaning of KONDRATIEFF WAVE in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012