Also, cigarette companies are allowed to help determine the price of tobacco and the volume of foreign imports, creating a dual-monopoly relationship between tobacco growers and the cigarette industry. Supporters of subsidies attribute the relatively low cost of food and the stability of food production to the assistance of the federal government. They say that if agriculture subsidies did not exist, food prices would vary wildly from year to year, and that many farmers would be unable to support themselves through market lows and weather catastrophes. Supporters often state that government support for family farms keeps farm monopolies from dominating production and raising prices. Supporters cite the great advances in per capita production since the New Deal revisions in farm policy as evidence of the success of agriculture subsidies.
Supporters also point out that the government has encouraged soil conservation through subsidies.
Opponents of agriculture subsidies say the farm economy is overly dependent on government, and that market forces would be a more efficient and inexpensive method of regulating production and market price. They contend that in the 1970s and 1980s, up to 30 percent of farmers' incomes were made up of government payments, primarily during years when guaranteed deficiency payments ballooned, and that farm programs have become the third largest federal program expense, behind Social Security and Medicare. Another primary criticism of farm commodity programs, especially corn and wheat programs, is that they encourage farmers to expand their operation in order to acquire more base acres and higher guaranteed government payments. Opponents believe that this leads to a concentration of production in the hands of fewer and fewer farm corporations, and actually undermines the concept of family farms. Opponents also state that although a primary goal of agriculture subsidies always has been to control production, most programs have had little success in doing so because farmers who are paid to keep part of their land out of production tend to remove the least productive acres.