Cycles Research is not a commonly studied subject and yet there are definite trends in history in the finding of information about cycles. Starting with Sir William Herschel there have been reports of various length cycles in many economic variables including commodity yields and prices, stock markets, business conditions, building activity, growth, price fluctuations and industrial production. The common cycles periods found over extended time periods are mentioned and the people that they are named after as well as the suggestion that some of the cycles seem to fit and exact number of times into others. Those that made the widest investigations of these phenomena such as Chizhevsky and Dewey came to the conclusion that there is a cosmic cause for cycles.
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