Kondradev

Nikolai Dmitrievich Kondratiev Kondratieff (March 4, 1892 - September 17, 1938), first translator Kondratieff, Kondratieff, Soviet economist, proposed the Kondratieff long wave, believing that there are long-term fluctuations in the development process of capitalist economy with a cycle of about 50 years, alternating between boom and depression. The famous American scholar Immanuel Wallerstein borrowed Kondratieff cycle theory in his world system analysis.