Commodity money coins. Commodity money Commodity money is money whose value comes from a commodity of which it is made. Commodity money consists of objects that have value in themselves (intrinsic value) as well as value in their use as money. Examples of commodities that have been used as mediums of exchange include gold, silver, copper, salt, peppercorns, tea, large stones (such as Rai stones), decorated belts, shells, alcohol, cigarettes, cannabis, silk, candy, nails, cocoa beans, cowries and barley. These items were sometimes used in a metric of perceived value in conjunction to one another, in various commodity valuation or price system
Market price support Market price support Market price support (MPS) is an indicator, developed by the OECD, used in the calculation of Producer and Consumer Subsidy Equivalents (PSE/CSE). The PSE and CSE acronyms were changed en 1999 to Producer and Consumer Support Estimate. MPS is the annual monetary value of gross transfers from consumers and taxpayers to agricultural producers arising from policy measures creating a gap between domestic market prices and border prices of a specific agricultural commodity measured at the farm gate level. Conditional on the production of a specific commodity, MPS includes the transfer to producers associated with both production for