1. A system comprising: a processing element capable of defining a plurality of independent component markets for a good, each component market being defined by a price sensitivity distribution of a unit purchase of the good and a market potential distribution of a number of units of the good in a market associated with the good, wherein the processing element is also capable of modeling at least one of demand or supply for the good in an aggregate market formed of the component markets, the processing element being capable of modeling at least one of demand or supply for the good in the aggregate market based upon the price sensitivity distributions and market potential distributions of the component markets.