A commodity is anything for which there's supply, but which is demanded without qualitative differentiation across a foreign market. Characteristic of commodities is that their prices are determined as a function of their market as a whole. Well-established physical commodities have actively traded spot and derivative markets. Generally, these are basic resources and agricultural products such as iron ore, crude oil, coal, ethanol, sugar, soybeans, aluminum, rice, wheat, gold and silver. Commo… (More on Commodity)