O of the purposes of U.S. agricultural programs has been to support or stabilize farm incomes by mitigating the effects of low crop prices and yields. Commodity programs such as the counter-cyclical payment and Marketing Loan programs have provided benefits or made payments to producers of several major field crops when crop prices fall short of expected or target levels. At the same time, the federal crop insurance program has provided support that has focused on yield shortfalls but has increasingly included revenue coverage. Several proposals to reform U.S. commodity programs have received attention in the 2007 farm bill debate (American Farmland Trust; National Association of Corn Growers; USDA). Generally, these proposals would alter or replace commodity price programs with programs that would make payments when revenues, that is, prices multiplied by yields, fall short of expected or target levels (Coble, Dismukes, and Thomas). Interest in revenue as the basis for farm programs is not new. In 1983, a national-level revenue program was studied as a way to control federal outlays for commodity programs (CBO). In the early 1990s, a regional-level revenue program was analyzed as a way to mitigate the need for supplemental, ad hoc disaster payments (Miranda and Glauber). More recently, a county-level revenue guarantee program has been promoted as providing protection when it is needed while reducing the chances that annual payments would exceed domestic commodity support limits allowed under the World Trade Organization Agreement on Agriculture (Babcock and Hart).