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Kitchin, Kondratieff, Kuznets, Juglar, Schumpeter - many have studied long-term economic cycles. Some cycle observers have seen relationships between economic cycles and Fibonacci relationships and with the number PI. You'll find links here to satisfy your curiosity. Our book page might be of interest too. Do economic cycles even exist? Elliottician Robert Prechter has pointed out that the mere fact that interest in economic cycles waxes and wanes during bad times and good times is proof of their existence.


1. Business Cycle Expansions & Contractions  National Bureau of Economic Research (NBER)
2. Business Cycles  Joyce Furfero
3. Business Cycle Theory  History of Economic Thought
4. Complexity Theory - The Future of the USA Stock Market  Didier Sornette, UCLA
5. Kitchin Cycle  Tradertalk
6. Kondratieff - Kondratieff Waves (Evolutionary World Politics)  George Modelski, University of Washington
7. Kondratieff - Kondratieff Wave  Daniel Fisher
8. Kondratieff - Kondratieff Wave Cycles  David Chapman (Gold Eagle)
9. Kondratieff - Long Wave Explanations: Kondratiev & His Successors  Roberge
10. Kondratieff - The Kondratieff Wave June 1789 through October 2003  Ian Gordon, the Long Wave Analyst
11. Kondratieff - The Kondratieff Theory  kwaves.com
12. Kondratieff - Market Wrapup With Tim Wood  Tim Wood, Jim Puplava, Financial Sense
13. essay - A Forecasting Model That Integrates Multiple Business & Stock Market Cycles  Bob Bronson, Financial Sense
14. essay - Generations and Business Cycles  Michael Alexander
15. essay - How to Ride Cycles  John Cameron, Berkeley Futures
16. essay - Measuring Financial Time - the Magic Value of PI  Barcley T. Leib (Safe Haven)
17. essay - Secular Market Trends  Michael Alexander
18. market analysis - Dow Theory, Technical Analysis, Cycles  Tim Wood
19. market analysis - harmonic timing  harmonictiming.com
20. market analysis - spiral calendar  Chris Carolan
21. research - Cycles Research Institute  Cycles Research Institute
22. research - Foundation for the Study of Cycles  Foundation for the Study of Cycles