William G. Tomek and Harry M. Kaiser review and adapt microeconomic principles to the characteristics of agricultural commodity markets and then apply these principles to the various dimensions of price behavior. They also provide an in-depth discussion of prices established for futures contracts and their relationship to cash (spot) market prices; cover the influential roles of price discovery institutions, such as auctions and negotiated contracts, and government policies regulating trade and farms; and discuss the specification, use, and evaluation of empirical models of agricultural prices, placing emphasis on the challenges of doing high-quality, useful analyses and interpreting results.