"Why doesn't the government quit trying to support farm prices and try a free market for awhile?" This article, based on the research of several Iowa State economists, provides some clues on the possible effects.
Thompson, Leon E.
"Return to a Free Market?,"
Iowa Farm Science: Vol. 14
, Article 6.
Available at: http://lib.dr.iastate.edu/farmscience/vol14/iss10/6