| http://www.w3.org/ns/prov#value | - Investors/speculators invest/bet on the price of a given commodity based on a number of factors that may impact the prevailing supply and demand ratios.Things like civil unrest, bad weather, or other disruptions (like the U.S. refusing to bring its HUGE oil reserves to market) all favor an INCREASE in the price of that commodity.More supply, more efficient uses and good weather conditions all favo
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