Jelaskan Karya penting dari Nikolai Kondratiev

1922 – The World Economy and its Conjunctures During and After the War

1923 – "Some Controversial Questions Concerning the World Economy and Crisis (Answer to Our Critiques)"

1924 – "On the Notion of Economic Statics, Dynamics and Fluctuations"

1925 – The Major Economic Cycles

1926a – "About the Question of the Major Cycles of the Conjuncture"

1926b – "Problems of Forecasting"

1926c – "Die langen Wellen der Konjunktur" (diterjemahkan ke bahasa Inggris: "The Long Waves in Economic Life" pada tahun 1935/1979)

1928a – The Major Cycles of the Conjuncture

1928b – "Dynamics of Industrial and Agricultural Prices (Contribution to the Theory of Relative Dynamics and Conjuncture)"

1934 – "Main Problems of Economic Statics and Dynamics"