2010 Reprint of 1947 edition. In 1947 Edward R. Dewey and Edwin F. Dakin published their book Cycles: The Science of Prediction which argued the United States economy was driven by four cycles of different length. Dewey devoted his life to the study of cycles, claiming that "everything that has been studied has been found to have cycles present." He carried out extensive studies of cyclicity in economic, geological, biological, sociology, physical sciences and other disciplines. As a result of his research, Dewey asserted that seemingly unrelated time series often had similar cycles periods...