The Cycle of the Decades was originally written about in 1878 by William Morton Halbert, an English economist. Later on W.D. Gann popularized this concept in his stock and commodity courses. Their basic finding was that markets tend to have similarities as a decade unfolds. Years ending in “0” tended to have similarities, years ending in “1” tended to have similarities, years ending in “2” tended to have similarities etc. Today the Cycle of the Decades is well used by stock market cycle analysts.

I find it quite interesting that the Cycle of the Decades is little used in analysis of commodity prices. My research shows this is a mistake. Research shows certain patterns that form early in a decade can lay out a general roadmap of what is to come later on. Years ending in 6 and 7 are particularly important. The Cycle of the Decades is a Third Factor impacting the price of corn and beans. The Cycle of the Decades contributes to our analysis of “Similar Years.”