What determines the price for a gallon of gas, an ounce of gold or a bushel of wheat?

In part, the commodity markets.

From precious metals and currencies to wheat, soybean and corn, traders buy and sell a wide variety of commodities.

If you'd like to understand how commodity trading works, you might visit one of these sites on the Web:

Investopedia: Provides basic definition of a commodity and related links on futures trading. investopedia.com/terms/c/commodity.asp

Financial Web: Discusses ways investors can profit from commodities, and other related topics. finweb.com/investing/how-do-investors-usually-profit-in-the-commodity-exchange.html

CME Group: Features a wide range of online futures trading educational information and specific products. cmegroup.com/education/product-specific/the-basics.html

Commodity Futures Trading Commission: Offers futures markets basics and commodity trading guidelines. cftc.gov/ConsumerProtection/EducationCenter/index.htm

OilPrice.com: Serves up commodity trading background and elementals. oilprice.com/Metals/Commodities/Commodity-Trading-A-Basic-Guide.html