Use supply and demand curves to depict equilibrium price and output in a competitive market for some farm product. Then show how an above-equilibrium price floor (price support) would cause a surplus in this market. Demonstrate in your graph how government could reduce the surplus through a policy that $(a)$ changes supply or $(b)$ changes demand. Identify each of the following actual government policies as primarily affecting the supply of or the demand for a particular farm product: acreage allotments, the foodstamp program, the Food for Peace program, a government buyout of dairy herds, and export promotion.