Commodity market oil is traded through NYMEX under trading symbol HO. Purified terephthalic acid (PTA) is traded through ZCE in units of 5 tons with the trading symbol of TA. Ethanol is traded at CBOT in units of 29,000 U.S. gal under trading symbols AC (Open Auction) and ZE (Electronic). Precious metals currently traded on the commodity market include gold, platinum, palladium and silver which are sold by the troy ounce. One of the main exchanges for these precious metals is COMEX. According to the World Gold Council, investments in gold are the primary driver of industry growth. Gold prices are highly
Commodity 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. Value and price are not