The U.S. Department of Agriculture, http://www.usda.gov/nass, publishes charts on the prices of farm products. Go to the USDA home page and select Charts and Maps and then Agricultural Prices. Choose three farm products of your choice and determine whether their prices (as measured by "prices received by farmers") have generally increased, decreased, or stayed the same over the past 3 years. In which of the three cases, if any, do you think that supply has increased more rapidly than demand? In which of the three cases, if any, do you think that demand has increased more rapidly than supply? Explain your reasoning.