"value" of a commodity were not synonymous. Price of any commodity would vary according to the imbalance of supply to demand at any one period of time. The "value" of the same commodity would be consistent and would reflect the amount of labour value used to produce that commodity. Prior to Marx, economists noted that the problem with using the "quantity of labour" to establish the value of commodities was that the time spent by an unskilled worker would be longer than the time spent on the same commodity by a skilled worker. Thus, under this analysis, the commodity produced by an unskilled worker would be more valuable than the same commodity produced by the skilled worker. Marx pointed out, however, that in society at large, an average amount of time that was necessary to produce the commodity would arise. This average time necessary to produce the commodity Marx called the "socially necessary labour time". Socially necessary labour time was the proper basis on which to base the "exchange value" of a given commodity. Commodity Super Cycle Commodity Super Cycles are periods of times, around a decade where commodities as a whole trade at a price that is greater than their long term Moving average. A Super Cycle will usually occur when there is large industrial and commercial change in a country or world that requires more resources to support the change. As prices rise goods and services that rely on commodities rise with them. History of Super Cycles There have been four super cycles over the last 120 years worldwide. The first commodity super cycle started in late 1890 and was accelerated on the back of widespread U.S. industrialization and World War 1. In 1917 commodity prices peaked and then entered a downtrend to the 1930s. As war erupted in Europe in the late 1930s and eventually including the U.S. the world saw a new cycle begin. Countries were not just preparing for war but also the Aftermath of World War II as lots of Europe and Asia faced heavy rebuilding. This cycle eventually peaked in 1951 and faded away in the early 70s. In the 1970s as world economies grew they needed more materials and energy to support expansion leading to increases in prices across the board. This boom came to an end as foreign investments fled as extractive industries became nationalized. The most recent of commodity super